20071116, 16:51  #133 
Just call me Henry
"David"
Sep 2007
Liverpool (GMT/BST)
37·163 Posts 
in what file does msieve do the primetest

20071116, 18:30  #134 
Tribal Bullet
Oct 2004
3^{2}·5·79 Posts 
Believe it or not, the answer is complicated. The library maintains a collection of all the factors currently found, and whenever a new factor is added to the collection (by any of the builtin algorithms) it is tested for primality. The function is factor_list_add in common/driver.c, and the primality test is mp_is_prime (common/mp.c) a RabinMiller implementation straight out of the book by Crandall and Pomerance. Later, when the msieve_run library function is about to finish, any factors found that are smaller than the square of the trial factoring bound have their status upgraded from probably prime to definitely prime.

20071116, 19:37  #135  
Sep 2004
B9_{16} Posts 
Quote:
I use gmpecm, ggnfs and msieve for aliquot sequences factorizations and I proove all the prp I find with aprcl (I have never found a composite prp but I sleep better doing so ). Would it be complicated to implement this deterministic primality test to msieve code ? This would avoid a manual check on the factors However, thanks for msieve, a recent c132 filtering step with msieve was much more memory efficient that the ggnfs one (in cygwin). regards. Philippe. 

20071116, 19:55  #136  
Tribal Bullet
Oct 2004
DE3_{16} Posts 
Quote:
Primality proving doesn't interest me all that much, and I already have my hands full with the factorization side of things. You're not the first that has requested a primality prover, but I just don't have the bandwidth to implement one. 

20071117, 09:22  #137 
Just call me Henry
"David"
Sep 2007
Liverpool (GMT/BST)
6031_{10} Posts 
so it is only a probable prime test
that explains why it is so fast 
20071117, 16:21  #138  
Tribal Bullet
Oct 2004
3^{2}×5×79 Posts 
Quote:
Many of the standalone primality proving applications are designed for much larger inputs. One exception is PPSIQS, which uses a math library that includes an implementation of APRCL and uses it on all factors found. 

20071117, 18:30  #139  
Sep 2004
B9_{16} Posts 
Quote:
Do you know if freely available c aprcl routine exists to be put into msieve code ? For less than 150 digits numbers, even a non optimized demo code would be enough. Thanks and regards. Philippe. Last fiddled with by Phil MjX on 20071117 at 18:31 

20071121, 17:34  #140  
Apr 2005
13 Posts 
Quote:


20071121, 17:55  #141  
Tribal Bullet
Oct 2004
DE3_{16} Posts 
Quote:
It's not optimal to solve a matrix in a week of lunch hours :) 

20071122, 00:25  #142 
Jun 2003
The Texas Hill Country
441_{16} Posts 
Nor is it optimal to "lunch" all of the hours that are required to solve a "real" matrix.
I appreciate your effort in creating something useful for the "cutting edge *NFS" processing rather than just finding trivial p70's. :) 
20071122, 07:20  #143  
Jul 2003
So Cal
A25_{16} Posts 
Quote:
Code:
Wed Nov 7 21:05:35 2007 Msieve v. 1.29 Wed Nov 7 21:05:35 2007 random seeds: a740f2b7 0cf1e780 Wed Nov 7 21:05:35 2007 factoring 21499173951598023655871526129741238864252274176505248438905816972331478841874026717266127459812853910615830233333737201439633130982196868280103768992238493630431515155684471825756247809234523310884830836516644313 (212 digits) Wed Nov 7 21:05:35 2007 commencing number field sieve (212digit input) Wed Nov 7 21:05:36 2007 R0: 1361129467683753853853498429727072845824 Wed Nov 7 21:05:36 2007 R1: 1 Wed Nov 7 21:05:36 2007 A0: 2 Wed Nov 7 21:05:36 2007 A1: 0 Wed Nov 7 21:05:36 2007 A2: 0 Wed Nov 7 21:05:36 2007 A3: 0 Wed Nov 7 21:05:36 2007 A4: 0 Wed Nov 7 21:05:36 2007 A5: 0 Wed Nov 7 21:05:36 2007 A6: 1 Wed Nov 7 21:05:36 2007 size score = 2.834873e11, Murphy alpha = 1.842138, combined = 1.674763e11 Wed Nov 7 21:10:21 2007 restarting with 92301399 relations Wed Nov 7 21:10:21 2007 Wed Nov 7 21:10:21 2007 commencing relation filtering Wed Nov 7 21:10:21 2007 commencing duplicate removal, pass 1 Wed Nov 7 21:11:25 2007 error 1 reading relation 7165101 Wed Nov 7 21:11:28 2007 error 4 reading relation 7430114 Wed Nov 7 21:22:34 2007 error 14 reading relation 84653095 Wed Nov 7 21:23:05 2007 error 14 reading relation 88388346 Wed Nov 7 21:23:39 2007 found 15480559 hash collisions in 92301354 relations Wed Nov 7 21:23:39 2007 commencing duplicate removal, pass 2 Wed Nov 7 21:31:59 2007 found 1804416 duplicates and 90496938 unique relations Wed Nov 7 21:31:59 2007 memory use: 504.8 MB Wed Nov 7 21:32:31 2007 ignoring smallest 3236951 rational and 3236317 algebraic ideals Wed Nov 7 21:32:31 2007 filtering ideals above 54192062 Wed Nov 7 21:32:31 2007 need 11004555 more relations than ideals Wed Nov 7 21:32:31 2007 commencing singleton removal, pass 1 Wed Nov 7 21:46:32 2007 relations with 0 large ideals: 1440982 Wed Nov 7 21:46:32 2007 relations with 1 large ideals: 8084380 Wed Nov 7 21:46:32 2007 relations with 2 large ideals: 23156082 Wed Nov 7 21:46:32 2007 relations with 3 large ideals: 32649691 Wed Nov 7 21:46:32 2007 relations with 4 large ideals: 21306953 Wed Nov 7 21:46:32 2007 relations with 5 large ideals: 3858850 Wed Nov 7 21:46:32 2007 relations with 6 large ideals: 0 Wed Nov 7 21:46:32 2007 relations with 7+ large ideals: 0 Wed Nov 7 21:46:32 2007 90496938 relations and about 61560280 large ideals Wed Nov 7 21:46:32 2007 commencing singleton removal, pass 2 Wed Nov 7 22:01:12 2007 found 15146451 singletons Wed Nov 7 22:01:12 2007 current dataset: 75350487 relations and about 45339080 large ideals Wed Nov 7 22:01:13 2007 commencing singleton removal, pass 3 Wed Nov 7 22:13:44 2007 relations with 0 large ideals: 1440982 Wed Nov 7 22:13:44 2007 relations with 1 large ideals: 7565914 Wed Nov 7 22:13:44 2007 relations with 2 large ideals: 20283422 Wed Nov 7 22:13:44 2007 relations with 3 large ideals: 26784097 Wed Nov 7 22:13:44 2007 relations with 4 large ideals: 16426523 Wed Nov 7 22:13:44 2007 relations with 5 large ideals: 2849549 Wed Nov 7 22:13:44 2007 relations with 6 large ideals: 0 Wed Nov 7 22:13:44 2007 relations with 7+ large ideals: 0 Wed Nov 7 22:13:44 2007 75350487 relations and about 57090163 large ideals Wed Nov 7 22:13:44 2007 commencing singleton removal, pass 4 Wed Nov 7 22:26:52 2007 found 12496973 singletons Wed Nov 7 22:26:52 2007 current dataset: 62853514 relations and about 43716489 large ideals Wed Nov 7 22:26:52 2007 commencing singleton removal, pass 5 Wed Nov 7 22:39:03 2007 found 2820361 singletons Wed Nov 7 22:39:03 2007 current dataset: 60033153 relations and about 40845657 large ideals Wed Nov 7 22:39:03 2007 commencing singleton removal, pass 6 Wed Nov 7 22:51:01 2007 found 588967 singletons Wed Nov 7 22:51:01 2007 current dataset: 59444186 relations and about 40254338 large ideals Wed Nov 7 22:51:02 2007 commencing singleton removal, pass 7 Wed Nov 7 23:03:07 2007 found 115899 singletons Wed Nov 7 23:03:07 2007 current dataset: 59328287 relations and about 40138336 large ideals Wed Nov 7 23:03:07 2007 commencing singleton removal, final pass Wed Nov 7 23:15:29 2007 memory use: 2116.1 MB Wed Nov 7 23:15:29 2007 commencing inmemory singleton removal Wed Nov 7 23:15:37 2007 begin with 59328287 relations and 46506881 unique ideals Wed Nov 7 23:17:13 2007 reduce to 52320955 relations and 39332648 ideals in 13 passes Wed Nov 7 23:17:13 2007 max relations containing the same ideal: 34 Wed Nov 7 23:17:47 2007 removing 3309517 relations and 2909517 ideals in 400000 cliques Wed Nov 7 23:17:50 2007 commencing inmemory singleton removal Wed Nov 7 23:17:55 2007 begin with 49011438 relations and 39332648 unique ideals Wed Nov 7 23:18:53 2007 reduce to 48890075 relations and 36300633 ideals in 9 passes Wed Nov 7 23:18:53 2007 max relations containing the same ideal: 33 Wed Nov 7 23:19:25 2007 removing 2452808 relations and 2052808 ideals in 400000 cliques Wed Nov 7 23:19:27 2007 commencing inmemory singleton removal Wed Nov 7 23:19:32 2007 begin with 46437267 relations and 36300633 unique ideals Wed Nov 7 23:20:20 2007 reduce to 46361623 relations and 34171573 ideals in 8 passes Wed Nov 7 23:20:20 2007 max relations containing the same ideal: 33 Wed Nov 7 23:20:50 2007 removing 2178875 relations and 1778875 ideals in 400000 cliques Wed Nov 7 23:20:51 2007 commencing inmemory singleton removal Wed Nov 7 23:20:56 2007 begin with 44182748 relations and 34171573 unique ideals Wed Nov 7 23:21:36 2007 reduce to 44118986 relations and 32328422 ideals in 7 passes Wed Nov 7 23:21:36 2007 max relations containing the same ideal: 32 Wed Nov 7 23:22:03 2007 removing 2024077 relations and 1624077 ideals in 400000 cliques Wed Nov 7 23:22:05 2007 commencing inmemory singleton removal Wed Nov 7 23:22:10 2007 begin with 42094909 relations and 32328422 unique ideals Wed Nov 7 23:22:41 2007 reduce to 42035244 relations and 30644206 ideals in 6 passes Wed Nov 7 23:22:41 2007 max relations containing the same ideal: 32 Wed Nov 7 23:23:07 2007 removing 1862111 relations and 1475629 ideals in 386482 cliques Wed Nov 7 23:23:09 2007 commencing inmemory singleton removal Wed Nov 7 23:23:13 2007 begin with 40173133 relations and 30644206 unique ideals Wed Nov 7 23:23:43 2007 reduce to 40119800 relations and 29114838 ideals in 6 passes Wed Nov 7 23:23:43 2007 max relations containing the same ideal: 31 Wed Nov 7 23:24:07 2007 removing 4205 relations and 3799 ideals in 406 cliques Wed Nov 7 23:24:08 2007 commencing inmemory singleton removal Wed Nov 7 23:24:13 2007 begin with 40115595 relations and 29114838 unique ideals Wed Nov 7 23:24:18 2007 reduce to 40115595 relations and 29111039 ideals in 1 passes Wed Nov 7 23:24:18 2007 max relations containing the same ideal: 31 Wed Nov 7 23:24:24 2007 dataset has 70.0% excess relations Wed Nov 7 23:24:52 2007 ignoring smallest 2931651 rational and 2931353 algebraic ideals Wed Nov 7 23:24:52 2007 filtering ideals above 48772855 Wed Nov 7 23:24:52 2007 need 9904100 more relations than ideals Wed Nov 7 23:24:52 2007 commencing singleton removal, final pass Wed Nov 7 23:35:28 2007 memory use: 1307.2 MB Wed Nov 7 23:35:28 2007 commencing inmemory singleton removal Wed Nov 7 23:35:33 2007 begin with 40115595 relations and 29721058 unique ideals Wed Nov 7 23:36:02 2007 reduce to 40111934 relations and 29717397 ideals in 6 passes Wed Nov 7 23:36:02 2007 max relations containing the same ideal: 33 Wed Nov 7 23:36:26 2007 removing 1207640 relations and 962422 ideals in 245218 cliques Wed Nov 7 23:36:27 2007 commencing inmemory singleton removal Wed Nov 7 23:36:31 2007 begin with 38904294 relations and 29717397 unique ideals Wed Nov 7 23:37:00 2007 reduce to 38880627 relations and 28731195 ideals in 6 passes Wed Nov 7 23:37:00 2007 max relations containing the same ideal: 33 Wed Nov 7 23:37:23 2007 removing 1133753 relations and 888535 ideals in 245218 cliques Wed Nov 7 23:37:24 2007 commencing inmemory singleton removal Wed Nov 7 23:37:28 2007 begin with 37746874 relations and 28731195 unique ideals Wed Nov 7 23:37:55 2007 reduce to 37723983 relations and 27819630 ideals in 6 passes Wed Nov 7 23:37:55 2007 max relations containing the same ideal: 32 Wed Nov 7 23:38:18 2007 removing 2442 relations and 2190 ideals in 252 cliques Wed Nov 7 23:38:18 2007 commencing inmemory singleton removal Wed Nov 7 23:38:23 2007 begin with 37721541 relations and 27819630 unique ideals Wed Nov 7 23:38:27 2007 reduce to 37721541 relations and 27817440 ideals in 1 passes Wed Nov 7 23:38:27 2007 max relations containing the same ideal: 32 Wed Nov 7 23:38:33 2007 dataset has 53.0% excess relations Wed Nov 7 23:38:58 2007 ignoring smallest 2624651 rational and 2623879 algebraic ideals Wed Nov 7 23:38:58 2007 filtering ideals above 43353649 Wed Nov 7 23:38:58 2007 need 7923280 more relations than ideals Wed Nov 7 23:38:58 2007 commencing singleton removal, final pass Wed Nov 7 23:49:32 2007 memory use: 1307.2 MB Wed Nov 7 23:49:33 2007 commencing inmemory singleton removal Wed Nov 7 23:49:37 2007 begin with 37721541 relations and 28431904 unique ideals Wed Nov 7 23:49:56 2007 reduce to 37721267 relations and 28431630 ideals in 4 passes Wed Nov 7 23:49:56 2007 max relations containing the same ideal: 32 Wed Nov 7 23:50:20 2007 removing 1717234 relations and 1317234 ideals in 400000 cliques Wed Nov 7 23:50:21 2007 commencing inmemory singleton removal Wed Nov 7 23:50:25 2007 begin with 36004033 relations and 28431630 unique ideals Wed Nov 7 23:50:57 2007 reduce to 35951920 relations and 27061826 ideals in 7 passes Wed Nov 7 23:50:57 2007 max relations containing the same ideal: 31 Wed Nov 7 23:51:20 2007 removing 1735027 relations and 1335027 ideals in 400000 cliques Wed Nov 7 23:51:21 2007 commencing inmemory singleton removal Wed Nov 7 23:51:25 2007 begin with 34216893 relations and 27061826 unique ideals Wed Nov 7 23:51:55 2007 reduce to 34162060 relations and 25671488 ideals in 7 passes Wed Nov 7 23:51:55 2007 max relations containing the same ideal: 30 Wed Nov 7 23:52:16 2007 removing 1698236 relations and 1298236 ideals in 400000 cliques Wed Nov 7 23:52:18 2007 commencing inmemory singleton removal Wed Nov 7 23:52:21 2007 begin with 32463824 relations and 25671488 unique ideals Wed Nov 7 23:52:49 2007 reduce to 32405137 relations and 24313985 ideals in 7 passes Wed Nov 7 23:52:49 2007 max relations containing the same ideal: 29 Wed Nov 7 23:53:09 2007 removing 816534 relations and 648663 ideals in 167871 cliques Wed Nov 7 23:53:10 2007 commencing inmemory singleton removal Wed Nov 7 23:53:14 2007 begin with 31588603 relations and 24313985 unique ideals Wed Nov 7 23:53:37 2007 reduce to 31576572 relations and 23653241 ideals in 6 passes Wed Nov 7 23:53:37 2007 max relations containing the same ideal: 29 Wed Nov 7 23:53:42 2007 dataset has 22.4% excess relations Wed Nov 7 23:54:04 2007 ignoring smallest 2315237 rational and 2314817 algebraic ideals Wed Nov 7 23:54:04 2007 filtering ideals above 37934443 Wed Nov 7 23:54:04 2007 need 6991129 more relations than ideals Wed Nov 7 23:54:04 2007 commencing singleton removal, final pass Thu Nov 8 00:03:21 2007 memory use: 1069.9 MB Thu Nov 8 00:03:21 2007 commencing inmemory singleton removal Thu Nov 8 00:03:24 2007 begin with 31576572 relations and 24271691 unique ideals Thu Nov 8 00:03:44 2007 reduce to 31576012 relations and 24271131 ideals in 5 passes Thu Nov 8 00:03:44 2007 max relations containing the same ideal: 29 Thu Nov 8 00:04:04 2007 removing 691553 relations and 534677 ideals in 156876 cliques Thu Nov 8 00:04:05 2007 commencing inmemory singleton removal Thu Nov 8 00:04:08 2007 begin with 30884459 relations and 24271131 unique ideals Thu Nov 8 00:04:28 2007 reduce to 30873985 relations and 23725935 ideals in 5 passes Thu Nov 8 00:04:28 2007 max relations containing the same ideal: 29 Thu Nov 8 00:04:47 2007 removing 671735 relations and 514859 ideals in 156876 cliques Thu Nov 8 00:04:48 2007 commencing inmemory singleton removal Thu Nov 8 00:04:51 2007 begin with 30202250 relations and 23725935 unique ideals Thu Nov 8 00:05:14 2007 reduce to 30191796 relations and 23200587 ideals in 6 passes Thu Nov 8 00:05:14 2007 max relations containing the same ideal: 29 Thu Nov 8 00:05:19 2007 dataset has 8.0% excess relations Thu Nov 8 00:05:23 2007 relations with 0 large ideals: 725653 Thu Nov 8 00:05:23 2007 relations with 1 large ideals: 3184961 Thu Nov 8 00:05:23 2007 relations with 2 large ideals: 7785145 Thu Nov 8 00:05:23 2007 relations with 3 large ideals: 9619145 Thu Nov 8 00:05:23 2007 relations with 4 large ideals: 6321596 Thu Nov 8 00:05:23 2007 relations with 5 large ideals: 2130989 Thu Nov 8 00:05:23 2007 relations with 6 large ideals: 338678 Thu Nov 8 00:05:23 2007 relations with 7+ large ideals: 85629 Thu Nov 8 00:05:23 2007 commencing 2way merge Thu Nov 8 00:05:51 2007 reduce to 20454949 relation sets and 13463740 unique ideals Thu Nov 8 00:05:51 2007 commencing full merge Thu Nov 8 00:10:21 2007 found 9985606 cycles, need 7633940 Thu Nov 8 00:10:26 2007 weight of 7633940 cycles is about 496411432 (65.03/cycle) Thu Nov 8 00:10:27 2007 distribution of cycle lengths: Thu Nov 8 00:10:27 2007 1 relations: 1127903 Thu Nov 8 00:10:27 2007 2 relations: 851202 Thu Nov 8 00:10:27 2007 3 relations: 892981 Thu Nov 8 00:10:27 2007 4 relations: 881405 Thu Nov 8 00:10:27 2007 5 relations: 853667 Thu Nov 8 00:10:27 2007 6 relations: 797427 Thu Nov 8 00:10:27 2007 7 relations: 731527 Thu Nov 8 00:10:27 2007 8 relations: 646893 Thu Nov 8 00:10:27 2007 9 relations: 537108 Thu Nov 8 00:10:27 2007 10+ relations: 313827 Thu Nov 8 00:10:27 2007 heaviest cycle: 13 relations Thu Nov 8 00:10:27 2007 commencing cycle optimization Thu Nov 8 00:11:24 2007 start with 36366518 relations Thu Nov 8 00:14:37 2007 pruned 681229 relations Thu Nov 8 00:14:38 2007 distribution of cycle lengths: Thu Nov 8 00:14:38 2007 1 relations: 1127903 Thu Nov 8 00:14:38 2007 2 relations: 867972 Thu Nov 8 00:14:38 2007 3 relations: 922881 Thu Nov 8 00:14:38 2007 4 relations: 904546 Thu Nov 8 00:14:38 2007 5 relations: 883486 Thu Nov 8 00:14:38 2007 6 relations: 819090 Thu Nov 8 00:14:38 2007 7 relations: 743998 Thu Nov 8 00:14:38 2007 8 relations: 634524 Thu Nov 8 00:14:38 2007 9 relations: 484816 Thu Nov 8 00:14:38 2007 10+ relations: 244724 Thu Nov 8 00:14:38 2007 heaviest cycle: 13 relations Thu Nov 8 00:14:53 2007 Thu Nov 8 00:14:57 2007 commencing linear algebra Thu Nov 8 00:14:59 2007 read 7633940 cycles Thu Nov 8 00:15:49 2007 cycles contain 21694261 unique relations Thu Nov 8 00:23:48 2007 read 21694261 relations Thu Nov 8 00:27:25 2007 using 32 quadratic characters above 1073740698 Thu Nov 8 00:54:21 2007 read 7633940 cycles Thu Nov 8 01:00:54 2007 filtering completed in 3 passes Thu Nov 8 01:00:56 2007 matrix is 7490253 x 7490451 with weight 666958089 (avg 89.04/col) Thu Nov 8 01:05:43 2007 read 7490451 cycles Thu Nov 8 01:06:57 2007 matrix is 7490253 x 7490451 with weight 666958089 (avg 89.04/col) Thu Nov 8 01:06:57 2007 saving the first 48 matrix rows for later Thu Nov 8 01:07:02 2007 matrix is 7490205 x 7490451 with weight 503129773 (avg 67.17/col) Thu Nov 8 01:07:02 2007 matrix includes 64 packed rows Thu Nov 8 01:07:02 2007 using block size 43690 for processor cache size 1024 kB Thu Nov 8 01:07:48 2007 commencing Lanczos iteration Wed Nov 21 12:03:07 2007 lanczos halted after 118456 iterations (dim = 7490189) Wed Nov 21 12:03:42 2007 recovered 41 nontrivial dependencies Wed Nov 21 12:03:43 2007 Wed Nov 21 12:03:43 2007 commencing square root phase Wed Nov 21 12:03:43 2007 reading relations for dependency 1 Wed Nov 21 12:04:03 2007 read 3747844 cycles Wed Nov 21 12:04:20 2007 cycles contain 12888418 unique relations Wed Nov 21 12:10:30 2007 read 12888418 relations Wed Nov 21 12:12:48 2007 multiplying 17639522 relations Wed Nov 21 13:06:14 2007 multiply complete, coefficients have about 429.68 million bits Wed Nov 21 13:06:27 2007 initial square root is modulo 51259543 Wed Nov 21 14:45:09 2007 reading relations for dependency 2 Wed Nov 21 14:45:32 2007 read 3745287 cycles Wed Nov 21 14:45:50 2007 cycles contain 12884684 unique relations Wed Nov 21 14:51:57 2007 read 12884684 relations Wed Nov 21 14:54:15 2007 multiplying 17635716 relations Wed Nov 21 15:47:40 2007 multiply complete, coefficients have about 429.58 million bits Wed Nov 21 15:47:53 2007 initial square root is modulo 51053479 Wed Nov 21 17:26:44 2007 reading relations for dependency 3 Wed Nov 21 17:27:07 2007 read 3745608 cycles Wed Nov 21 17:27:25 2007 cycles contain 12885791 unique relations Wed Nov 21 17:33:31 2007 read 12885791 relations Wed Nov 21 17:35:49 2007 multiplying 17636998 relations Wed Nov 21 18:28:49 2007 multiply complete, coefficients have about 429.61 million bits Wed Nov 21 18:29:02 2007 initial square root is modulo 51114421 Wed Nov 21 20:06:52 2007 reading relations for dependency 4 Wed Nov 21 20:07:16 2007 read 3746693 cycles Wed Nov 21 20:07:33 2007 cycles contain 12885473 unique relations Wed Nov 21 20:13:40 2007 read 12885473 relations Wed Nov 21 20:15:58 2007 multiplying 17638674 relations Wed Nov 21 21:09:12 2007 multiply complete, coefficients have about 429.65 million bits Wed Nov 21 21:09:25 2007 initial square root is modulo 51212101 Wed Nov 21 22:47:26 2007 prp86 factor: 17315878129048863927974905480696448369723747093035498799994851681384411684778961025249 Wed Nov 21 22:47:26 2007 prp127 factor: 124158727564219361367740120938200983008 4399769371108904801198294935706207364264832500354031378698910359793960404372927442514937 Wed Nov 21 22:47:27 2007 elapsed time 337:41:52 

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