b := (  1, 97, 59)(  2, 92, 54)(  3, 81,115)(  4, 52,178)(  5, 78,157)
(  6, 13,134)(  7,156,113)(  8,107,176)(  9,179, 20)( 10,132,104)( 11,164, 61)
( 12,101, 88)( 14, 42,122)( 15, 30, 95)( 16,130, 75)( 17,138,145)( 18,174, 89)
( 19,141, 47)( 21,135, 76)( 22,163, 31)( 23, 24,171)( 25,177,102)( 26, 28, 91)
( 27, 71, 67)( 29,109,137)( 32, 74, 35)( 33, 65,106)( 34, 96, 51)( 36, 70,148)
( 37,168, 64)( 38,173,144)( 39,154,160)( 40, 43, 41)( 44,143,153)( 45, 86,118)
( 46,162, 69)( 48, 83, 94)( 49,152,126)( 50,139, 63)( 53, 66,170)( 55,117,100)
( 56,121,136)( 57, 68,103)( 58, 72,149)( 60,123,125)( 62,155,133)( 73,146,172)
( 77,119,116)( 79, 93,180)( 80,124, 84)( 82,167,105)( 85, 98,159)( 87,161,114)
( 90,165,140)( 99,147,151)(108,111,110)(112,169,175)(120,166,129)(127,128,158)
(131,150,142);