b := (  1,160,139)(  2, 37, 16)(  3, 70, 42)(  4, 87,145)(  5,156, 20)
(  6, 31, 89)(  7,134,106)(  8,103, 57)(  9, 45,164)( 10, 27, 74)( 11, 88,165)
( 12,131,167)( 13,121, 83)( 14,144,109)( 15,129,118)( 17,122, 46)( 18, 92, 72)
( 19,126,154)( 21, 91, 81)( 22, 50,157)( 23, 44, 98)( 24, 30, 49)( 25,143, 66)
( 26, 79,135)( 28, 51,113)( 29, 43, 82)( 32,162, 67)( 33,151,110)( 34,114,100)
( 35,128,123)( 36,124,108)( 38, 86,101)( 39,136, 71)( 40,137,105)( 41, 97,150)
( 47,161, 58)( 48,141, 53)( 52,140, 68)( 54,159,130)( 55,163, 93)( 56, 80,107)
( 59, 77, 65)( 60,112,115)( 61, 64,116)( 62,142, 76)( 63,125,148)( 69, 96,120)
( 73,168,119)( 75, 90,138)( 78,132,153)( 84,158,104)( 85,155, 95)( 94,133,147)
( 99,117,111)(102,149,166)(127,146,152);