z1 := (1,2,4,3)(5,7,12,8)(6,9,15,10)(11,17,26,18)(13,16,24,20)(14,21,30,22)
     (19,27)(23,32)(25,34,49,35)(28,38,56,39)(29,40,58,41)(31,43,62,44)(33,46,
     67,47)(36,51,74,52)(37,53,77,54)(42,57,81,60)(45,64,88,65)(48,69,95,70)
     (50,63,87,72)(55,79,106,80)(59,82,109,83)(61,85)(66,90,118,91)(68,92,121,
     93)(71,97)(73,98,128,99)(75,100)(76,101,117,102)(78,104,123,94)(84,111,
     141,112)(86,107,89,114)(96,124,150,125)(103,115,143,132)(105,134,120,135)
     (108,126,152,137)(110,139,127,140)(113,142,148,122)(116,144,162,145)(119,
     129,149,147)(130,151,164,146)(131,153,167,154)(133,155,168,156)(136,157)
     (138,158,160,159)(161,170,175,169)(163,171)(165,172,173,166)(174,176);