b := (  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14)( 15, 16, 17, 18,
  19, 20, 21, 22, 23, 24, 25, 26, 27)( 28, 40, 51, 61, 70, 78, 85, 91, 96,100,
 103,105, 39)( 29, 41, 52, 62, 71, 79, 86, 92, 97,101,104, 38, 50)
( 30, 42, 53, 63, 72, 80, 87, 93, 98,102, 37, 49, 60)( 31, 43, 54, 64, 73, 81,
 88, 94, 99, 36, 48, 59, 69)( 32, 44, 55, 65, 74, 82, 89, 95, 35, 47, 58, 68,
  77)( 33, 45, 56, 66, 75, 83, 90, 34, 46, 57, 67, 76, 84);