Profiling results ----------------- Total cpu time observed: 10702ms (out of 10904ms) Number of samples taken: 49 (once every 218ms) ======================================================================== Caller Idx Total Self Name+src Local% ms(pct) ms(pct) Callee ======================================================================== ??? [42] 100.0% [1] 10702(100.0%) 0(0.0%) profile-thunk14 ...t/pkgs/profile-lib/main.rkt:9:0 run [12] 100.0% ------------------------------------------------------------------------ ??? [42] 100.0% [2] 7852(73.4%) 0(0.0%) run-improve58 ...ock/herbie/src/mainloop.rkt:242:0 for-loop [13] 56.1% finalize-table! [14] 43.9% ------------------------------------------------------------------------ ??? [42] 100.0% [3] 3982(37.2%) 0(0.0%) simplify ...lock/herbie/src/core/simplify.rkt:39:0 for-loop [17] 42.4% simplify-expr [15] 37.6% iterate-egraph!5 [24] 20.0% ------------------------------------------------------------------------ hash-ref! [90] 100.0% [4] 1844(17.2%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:322:33 for-loop [16] 100.0% ------------------------------------------------------------------------ hash-ref! [90] 100.0% [5] 1444(13.5%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:285:26 for-loop [18] 100.0% ------------------------------------------------------------------------ hash-ref! [90] 100.0% [6] 1040(9.7%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:392:23 for-loop [19] 78.8% partition-list [21] 21.2% ------------------------------------------------------------------------ post-process [26] 24.9% loop [87] 75.1% [7] 804(7.5%) 0(0.0%) completely-simplify-alt ...erbie/src/glue.rkt:87:0 simplify-expr [15] 100.0% ------------------------------------------------------------------------ hash-ref! [90] 100.0% [8] 620(5.8%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:295:23 for-loop [20] 100.0% ------------------------------------------------------------------------ hash-ref! [90] 100.0% [9] 216(2.0%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:483:23 for-loop [22] 100.0% ------------------------------------------------------------------------ f37 [72] 100.0% [10] 200(1.9%) 0(0.0%) taylor-invert .../herbie/src/core/taylor.rkt:312:0 first-nonzero-exp [23] 100.0% ------------------------------------------------------------------------ hash-ref! [90] 100.0% [11] 198(1.9%) 0(0.0%) ??? /home/ztatlock/herbie/src/programs.rkt:197:5 loop [87] 100.0% ------------------------------------------------------------------------ profile-thunk14 [1] 100.0% [12] 10702(100.0%) 0(0.0%) run ...share/racket/pkgs/profile-lib/main.rkt:31:2 ??? [42] 100.0% ------------------------------------------------------------------------ run-improve58 [2] 100.0% [13] 4402(41.1%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:253:8 run-iter! [25] 100.0% ------------------------------------------------------------------------ run-improve58 [2] 100.0% [14] 3450(32.2%) 0(0.0%) finalize-table! ...k/herbie/src/mainloop.rkt:264:0 post-process [26] 100.0% ------------------------------------------------------------------------ completely-simplify-alt [7] 34.9% simplify [3] 65.1% [15] 2302(21.5%) 0(0.0%) simplify-expr ...herbie/src/core/simplify.rkt:68:0 iterate-egraph!5 [24] 100.0% ------------------------------------------------------------------------ ??? [4] 100.0% [16] 1844(17.2%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:324:46 hash-ref! [90] 89.2% simplify [27] 10.8% ------------------------------------------------------------------------ simplify [3] 100.0% [17] 1688(15.8%) 0(0.0%) for-loop ...ock/herbie/src/core/simplify.rkt:61:12 iterate-egraph!5 [24] 100.0% ------------------------------------------------------------------------ ??? [5] 100.0% [18] 1444(13.5%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:285:52 hash-ref! [90] 92.5% ??? [30] 7.5% ------------------------------------------------------------------------ ??? [6] 100.0% [19] 820(7.7%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:396:33 for-loop [28] 100.0% ------------------------------------------------------------------------ ??? [8] 100.0% [20] 620(5.8%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:298:27 hash-ref! [90] 100.0% ------------------------------------------------------------------------ ??? [6] 100.0% [21] 220(2.1%) 0(0.0%) partition-list ...herbie/src/core/taylor.rkt:376:0 rle [29] 100.0% ------------------------------------------------------------------------ ??? [9] 100.0% [22] 216(2.0%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:487:35 parse-loop50 [83] 100.0% ------------------------------------------------------------------------ taylor-invert [10] 100.0% [23] 200(1.9%) 0(0.0%) first-nonzero-exp ...bie/src/core/taylor.rkt:260:0 simplify [27] 100.0% ------------------------------------------------------------------------ simplify [3] 16.6% for-loop [17] 35.3% simplify-expr [15] 48.1% [24] 4786(44.7%) 0(0.0%) iterate-egraph!5 ...bie/src/core/simplify.rkt:95:0 one-iter [31] 95.4% debug7 [84] 4.6% ------------------------------------------------------------------------ for-loop [13] 100.0% [25] 4402(41.1%) 0(0.0%) run-iter! ...tatlock/herbie/src/mainloop.rkt:223:0 simplify! [32] 90.5% finalize-iter! [34] 5.0% choose-best-alt! [36] 4.5% ------------------------------------------------------------------------ finalize-table! [14] 100.0% [26] 3450(32.2%) 0(0.0%) post-process .../ztatlock/herbie/src/glue.rkt:95:0 for-loop [33] 70.8% loop [87] 17.5% ??? [40] 5.9% completely-simplify-alt [7] 5.8% ------------------------------------------------------------------------ for-loop [16] 9.9% first-nonzero-exp [23] 9.9% hash-ref! [90] 80.2% [27] 2024(18.9%) 0(0.0%) simplify ...atlock/herbie/src/core/reduce.rkt:18:0 f37 [72] 70.2% parse-loop50 [83] 29.8% ------------------------------------------------------------------------ for-loop [19] 100.0% [28] 820(7.7%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:398:39 hash-ref! [90] 100.0% ------------------------------------------------------------------------ partition-list [21] 100.0% [29] 220(2.1%) 0(0.0%) rle ...e/ztatlock/herbie/src/core/taylor.rkt:372:0 group-by68 [35] 100.0% ------------------------------------------------------------------------ for-loop [18] 100.0% [30] 216(2.0%) 0(0.0%) ??? .../ztatlock/herbie/src/core/taylor.rkt:288:19 hash-ref! [90] 100.0% ------------------------------------------------------------------------ iterate-egraph!5 [24] 100.0% [31] 4564(42.6%) 202(1.9%) one-iter ...ock/herbie/src/core/simplify.rkt:106:0 for-loop [38] 86.3% loop [41] 9.2% ------------------------------------------------------------------------ run-iter! [25] 100.0% [32] 3982(37.2%) 0(0.0%) simplify! ...tatlock/herbie/src/mainloop.rkt:162:0 for-loop [37] 100.0% ------------------------------------------------------------------------ post-process [26] 100.0% [33] 2444(22.8%) 0(0.0%) for-loop /home/ztatlock/herbie/src/glue.rkt:119:17 append-map [39] 100.0% ------------------------------------------------------------------------ run-iter! [25] 100.0% [34] 222(2.1%) 0(0.0%) finalize-iter! ...ck/herbie/src/mainloop.rkt:177:0 ??? [40] 100.0% ------------------------------------------------------------------------ rle [29] 100.0% [35] 220(2.1%) 220(2.1%) group-by68 ...acket/collects/racket/list.rkt:749:0 ------------------------------------------------------------------------ run-iter! [25] 100.0% [36] 198(1.9%) 0(0.0%) choose-best-alt! .../herbie/src/mainloop.rkt:120:0 ??? [40] 100.0% ------------------------------------------------------------------------ simplify! [32] 100.0% [37] 3982(37.2%) 0(0.0%) for-loop ...ztatlock/herbie/src/mainloop.rkt:166:6 ??? [42] 100.0% ------------------------------------------------------------------------ for-loop [38] 50.0% one-iter [31] 50.0% [38] 3940(36.8%) 0(0.0%) for-loop ...ck/herbie/src/core/simplify.rkt:116:12 for-loop [38] 50.0% match-e [47] 47.5% ??? [68] 2.5% ------------------------------------------------------------------------ f37 [72] 4.2% for-loop [33] 95.8% [39] 2444(22.8%) 204(1.9%) append-map ...acket/collects/racket/list.rkt:565:2 taylor-alt [43] 87.6% loop [87] 8.2% ------------------------------------------------------------------------ choose-best-alt! [36] 23.5% post-process [26] 23.9% debug7 [84] 26.3% finalize-iter! [34] 26.3% [40] 844(7.9%) 222(2.1%) ??? ...contract/private/arrow-val-first.rkt:357:18 for-loop [44] 50.2% atab-pick-alt8 [46] 23.5% ------------------------------------------------------------------------ one-iter [31] 100.0% [41] 422(3.9%) 0(0.0%) loop ...cket/collects/racket/private/map.rkt:53:19 apply-match [45] 100.0% ------------------------------------------------------------------------ for-loop [37] 12.4% run [12] 43.8% [42] 10702(100.0%) 0(0.0%) ??? ...lects/racket/private/more-scheme.rkt:261:28 profile-thunk14 [1] 43.8% run-improve58 [2] 30.5% loop [48] 13.3% simplify [3] 12.4% ------------------------------------------------------------------------ loop [87] 8.2% append-map [39] 91.8% [43] 2444(22.8%) 0(0.0%) taylor-alt ...e/ztatlock/herbie/src/glue.rkt:142:0 for-loop [49] 100.0% ------------------------------------------------------------------------ ??? [40] 100.0% [44] 424(4.0%) 0(0.0%) for-loop ...ock/herbie/src/core/alt-table.rkt:51:2 atab-add-altn [50] 100.0% ------------------------------------------------------------------------ loop [41] 100.0% [45] 422(3.9%) 0(0.0%) apply-match .../herbie/src/core/simplify.rkt:122:2 merge-egraph-nodes! [51] 52.1% match-e [47] 47.9% ------------------------------------------------------------------------ ??? [40] 100.0% [46] 198(1.9%) 0(0.0%) atab-pick-alt8 ...rbie/src/core/alt-table.rkt:54:0 ??? [52] 100.0% ------------------------------------------------------------------------ apply-match [45] 5.1% for-loop [62] 10.4% for-loop [38] 84.4% [47] 3942(36.8%) 2894(27.0%) match-e ...tatlock/herbie/src/core/ematch.rkt:46:0 for-loop [54] 21.5% for-loop [62] 7.9% loop [87] 2.5% ------------------------------------------------------------------------ ??? [42] 100.0% [48] 2850(26.6%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:122:2 make-exacts* [61] 56.5% loop [55] 36.4% for-loop [58] 7.1% ------------------------------------------------------------------------ taylor-alt [43] 100.0% [49] 2444(22.8%) 0(0.0%) for-loop /home/ztatlock/herbie/src/glue.rkt:144:2 location-do [53] 100.0% ------------------------------------------------------------------------ for-loop [44] 100.0% [50] 424(4.0%) 0(0.0%) atab-add-altn ...rbie/src/core/alt-table.rkt:208:0 best-and-tied-at-points [56] 100.0% ------------------------------------------------------------------------ apply-match [45] 100.0% [51] 220(2.1%) 0(0.0%) merge-egraph-nodes! ...e/src/core/egraph.rkt:152:0 update-leader! [57] 100.0% ------------------------------------------------------------------------ atab-pick-alt8 [46] 100.0% [52] 198(1.9%) 0(0.0%) ??? ...tract/private/arrow-higher-order.rkt:369:33 best-alt [59] 100.0% ------------------------------------------------------------------------ location-do [53] 25.2% for-loop [49] 74.8% [53] 2444(22.8%) 0(0.0%) location-do ...tlock/herbie/src/programs.rkt:129:0 approximate9 [60] 74.8% location-do [53] 25.2% ------------------------------------------------------------------------ match-e [47] 100.0% [54] 1048(9.8%) 646(6.0%) for-loop ...tlock/herbie/src/core/ematch.rkt:59:11 for-loop [62] 38.4% ------------------------------------------------------------------------ loop [48] 100.0% [55] 1038(9.7%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:93:2 loop [63] 74.2% make-exacts* [61] 25.8% ------------------------------------------------------------------------ atab-add-altn [50] 100.0% [56] 424(4.0%) 0(0.0%) best-and-tied-at-points ...ore/alt-table.rkt:122:0 errors [73] 100.0% ------------------------------------------------------------------------ merge-egraph-nodes! [51] 100.0% [57] 220(2.1%) 0(0.0%) update-leader! ...herbie/src/core/egraph.rkt:217:0 for-loop [64] 100.0% ------------------------------------------------------------------------ loop [48] 100.0% [58] 202(1.9%) 0(0.0%) for-loop .../ztatlock/herbie/src/points.rkt:128:18 for-loop [65] 100.0% ------------------------------------------------------------------------ ??? [52] 100.0% [59] 198(1.9%) 0(0.0%) best-alt /home/ztatlock/herbie/src/glue.rkt:79:0 argmins [66] 100.0% ------------------------------------------------------------------------ location-do [53] 100.0% [60] 2444(22.8%) 0(0.0%) approximate9 ...ck/herbie/src/core/taylor.rkt:11:0 loop [67] 83.6% f37 [72] 16.4% ------------------------------------------------------------------------ loop [55] 14.3% loop [48] 85.7% [61] 1878(17.5%) 0(0.0%) make-exacts* ...tatlock/herbie/src/points.rkt:80:0 loop [87] 56.8% map [76] 43.2% ------------------------------------------------------------------------ for-loop [54] 39.3% match-e [47] 60.7% [62] 1024(9.6%) 0(0.0%) for-loop ...tlock/herbie/src/core/ematch.rkt:65:37 match-e [47] 80.3% ??? [68] 19.7% ------------------------------------------------------------------------ loop [55] 100.0% [63] 770(7.2%) 0(0.0%) loop /home/ztatlock/herbie/src/points.rkt:83:4 map [76] 100.0% ------------------------------------------------------------------------ update-leader! [57] 100.0% [64] 220(2.1%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:222:6 for-loop [70] 100.0% ------------------------------------------------------------------------ for-loop [58] 100.0% [65] 202(1.9%) 0(0.0%) for-loop .../ztatlock/herbie/src/points.rkt:129:20 sample-default [71] 100.0% ------------------------------------------------------------------------ best-alt [59] 100.0% [66] 198(1.9%) 0(0.0%) argmins /home/ztatlock/herbie/src/common.rkt:85:0 composed [69] 100.0% ------------------------------------------------------------------------ approximate9 [60] 100.0% [67] 2044(19.1%) 0(0.0%) loop ...e/ztatlock/herbie/src/core/taylor.rkt:82:4 hash-ref! [90] 100.0% ------------------------------------------------------------------------ for-loop [38] 49.8% for-loop [62] 50.2% [68] 402(3.8%) 202(1.9%) ??? /home/ztatlock/herbie/src/core/ematch.rkt:50:5 for-loop [75] 49.8% ------------------------------------------------------------------------ argmins [66] 49.3% f37 [72] 50.7% [69] 402(3.8%) 0(0.0%) composed ...ollects/racket/private/list.rkt:321:16 f37 [72] 50.7% errors [73] 49.3% ------------------------------------------------------------------------ for-loop [64] 100.0% [70] 220(2.1%) 0(0.0%) for-loop ...tlock/herbie/src/core/egraph.rkt:223:8 hash-update! [74] 100.0% ------------------------------------------------------------------------ for-loop [65] 100.0% [71] 202(1.9%) 0(0.0%) sample-default ...rc/syntax/distributions.rkt:11:0 ??? [96] 100.0% ------------------------------------------------------------------------ f37 [72] 5.5% composed [69] 5.6% map [76] 9.6% parse-loop50 [83] 11.1% approximate9 [60] 13.7% simplify [27] 54.6% [72] 1824(17.0%) 616(5.8%) f37 ...t/collects/racket/match/compiler.rkt:499:40 map [76] 37.2% taylor [81] 11.0% parse-app [79] 11.0% composed [69] 5.6% append-map [39] 5.6% f37 [72] 5.5% gather-multiplicative-terms [80] 5.5% taylor-invert [10] 2.7% ------------------------------------------------------------------------ composed [69] 31.8% best-and-tied-at-points [56] 68.2% [73] 622(5.8%) 0(0.0%) errors /home/ztatlock/herbie/src/points.rkt:144:0 for-loop [77] 68.2% eval-prog [82] 31.8% ------------------------------------------------------------------------ for-loop [70] 100.0% [74] 220(2.1%) 0(0.0%) hash-update! ...ket/private/more-scheme.rkt:362:13 ??? [78] 100.0% ------------------------------------------------------------------------ ??? [68] 100.0% [75] 200(1.9%) 200(1.9%) for-loop ...atlock/herbie/src/core/ematch.rkt:51:7 ------------------------------------------------------------------------ parse-loop50 [83] 8.4% f37 [72] 25.3% loop [63] 32.3% make-exacts* [61] 34.0% [76] 2386(22.3%) 0(0.0%) map ...acket/collects/racket/private/map.rkt:21:13 loop [87] 66.3% parse-loop50 [83] 25.3% f37 [72] 8.4% ------------------------------------------------------------------------ errors [73] 100.0% [77] 424(4.0%) 222(2.1%) for-loop ...e/ztatlock/herbie/src/points.rkt:147:4 ??? [89] 47.6% ------------------------------------------------------------------------ hash-update! [74] 100.0% [78] 220(2.1%) 0(0.0%) ??? .../ztatlock/herbie/src/core/egraph.rkt:225:24 for-loop [85] 100.0% ------------------------------------------------------------------------ f37 [72] 100.0% [79] 200(1.9%) 200(1.9%) parse-app .../collects/racket/private/kw.rkt:903:2 ------------------------------------------------------------------------ f37 [72] 100.0% [80] 200(1.9%) 0(0.0%) gather-multiplicative-terms ...re/reduce.rkt:107:0 compose [86] 100.0% ------------------------------------------------------------------------ f37 [72] 100.0% [81] 200(1.9%) 0(0.0%) taylor ...tatlock/herbie/src/core/taylor.rkt:157:0 debug7 [84] 100.0% ------------------------------------------------------------------------ errors [73] 100.0% [82] 198(1.9%) 0(0.0%) eval-prog ...tatlock/herbie/src/programs.rkt:162:0 hash-ref! [90] 100.0% ------------------------------------------------------------------------ loop [87] 10.7% for-loop [22] 15.2% parse-loop50 [83] 17.7% simplify [27] 24.6% map [76] 31.8% [83] 1424(13.3%) 804(7.5%) parse-loop50 ...s/racket/match/compiler.rkt:410:15 parse-loop50 [83] 17.7% for-loop [88] 15.2% map [76] 14.1% loop [87] 10.7% f37 [72] 10.6% ------------------------------------------------------------------------ taylor [81] 47.4% iterate-egraph!5 [24] 52.6% [84] 422(3.9%) 200(1.9%) debug7 /home/ztatlock/herbie/src/debug.rkt:102:0 ??? [40] 52.6% ------------------------------------------------------------------------ ??? [78] 100.0% [85] 220(2.1%) 220(2.1%) for-loop ...lock/herbie/src/core/egraph.rkt:226:26 ------------------------------------------------------------------------ gather-multiplicative-terms [80]100.0% [86] 200(1.9%) 200(1.9%) compose ...collects/racket/private/list.rkt:385:12 ------------------------------------------------------------------------ make-exacts* [61] 0.0% map [76] 0.1% post-process [26] 1.7% parse-loop50 [83] 3.3% ??? [11] 4.7% append-map [39] 4.7% match-e [47] 4.7% loop [87] 80.7% [87] 4256(39.8%) 200(1.9%) loop ...cket/collects/racket/private/map.rkt:26:19 loop [87] 80.7% taylor-alt [43] 4.7% hash-ref! [90] 4.7% parse-loop50 [83] 3.3% completely-simplify-alt [7] 1.7% ??? [89] 0.1% ->flonum [94] 0.0% ------------------------------------------------------------------------ parse-loop50 [83] 100.0% [88] 216(2.0%) 0(0.0%) for-loop ...lock/herbie/src/core/taylor.rkt:490:59 hash-ref! [90] 100.0% ------------------------------------------------------------------------ for-loop [77] 7.8% loop [87] 92.2% [89] 2600(24.3%) 274(2.6%) ??? /home/ztatlock/herbie/src/programs.rkt:168:4 ??? [92] 49.8% real->bigfloat [93] 31.8% ->flonum [94] 7.8% ------------------------------------------------------------------------ for-loop [88] 1.2% ??? [30] 1.2% eval-prog [82] 2.9% for-loop [20] 4.5% loop [87] 5.9% for-loop [28] 6.7% for-loop [18] 14.9% for-loop [16] 15.9% ??? [91] 23.4% loop [67] 23.4% [90] 2242(20.9%) 198(1.9%) hash-ref! ...racket/private/more-scheme.rkt:373:13 ??? [91] 23.4% ??? [4] 18.9% simplify [27] 17.9% ??? [5] 16.1% ??? [6] 9.2% ??? [11] 5.9% ??? [8] 4.5% ??? [9] 1.2% ------------------------------------------------------------------------ hash-ref! [90] 100.0% [91] 2044(19.1%) 0(0.0%) ??? ...e/ztatlock/herbie/src/core/taylor.rkt:42:15 hash-ref! [90] 100.0% ------------------------------------------------------------------------ ??? [89] 100.0% [92] 1296(12.1%) 0(0.0%) ??? ...acket/collects/racket/private/kw.rkt:400:14 ??? [95] 79.6% ...higher-order.rkt:373:33 [97] 20.4% ------------------------------------------------------------------------ ??? [89] 100.0% [93] 828(7.7%) 828(7.7%) real->bigfloat .../private/bigfloat/mpfr.rkt:451:0 ------------------------------------------------------------------------ ??? [89] 44.7% loop [87] 55.3% [94] 452(4.2%) 0(0.0%) ->flonum ...ock/herbie/src/syntax/syntax.rkt:224:0 ??? [102] 55.3% ??? [96] 44.7% ------------------------------------------------------------------------ ??? [92] 100.0% [95] 1032(9.6%) 0(0.0%) ??? ...-racket/utils/simple-result-arrow.rkt:26:12 bfadd [98] 100.0% ------------------------------------------------------------------------ ->flonum [94] 50.0% sample-default [71] 50.0% [96] 404(3.8%) 404(3.8%) ??? /home/ztatlock/herbie/src/config.rkt:29:0 ------------------------------------------------------------------------ ??? [92] 100.0% [97] 264(2.5%) 0(0.0%) ...higher-order.rkt:373:33 (unknown source) ??? [99] 100.0% ------------------------------------------------------------------------ ??? [95] 100.0% [98] 1032(9.6%) 780(7.3%) bfadd ...-lib/math/private/bigfloat/mpfr.rkt:819:4 ??? [101] 24.4% ------------------------------------------------------------------------ ...higher-order.rkt:373:33 [97] 100.0% [99] 264(2.5%) 0(0.0%) ??? ...cts/racket/contract/private/list.rkt:187:10 ??? [100] 100.0% ------------------------------------------------------------------------ ??? [99] 100.0% [100] 264(2.5%) 0(0.0%) ??? ...ects/racket/contract/private/guts.rkt:638:8 ??? [102] 100.0% ------------------------------------------------------------------------ bfadd [98] 100.0% [101] 252(2.4%) 252(2.4%) ??? .../share/racket/collects/ffi/unsafe.rkt:861:4 ------------------------------------------------------------------------ ->flonum [94] 48.6% ??? [100] 51.4% [102] 514(4.8%) 514(4.8%) ??? ...tract/private/arrow-higher-order.rkt:373:33 ------------------------------------------------------------------------