z1 := (1,3,10,13,4,11,18,6)(2,7,20,15,5,14,24,8)(9,25,44,30,12,29,48,26)(16,
     31,52,34,17,33,56,32)(19,35,50,28,21,38,49,27)(22,39,62,42,23,41,66,40)
     (36,47,72,60,37,46,71,59)(43,65,94,70,45,64,93,67)(51,75,105,80,53,79,
     108,76)(54,81,84,58,55,82,83,57)(61,87,119,92,63,91,122,88)(68,97,134,
     100,69,99,138,98)(73,101,140,104,74,103,142,102)(77,109,150,112,78,111,
     152,110)(85,115,155,118,86,117,156,116)(89,123,164,126,90,125,168,124)
     (95,129,174,132,96,131,178,130)(106,145,191,148,107,147,194,146)(113,136,
     181,154,114,137,182,153)(120,159,203,162,121,161,206,160)(127,169,197,
     172,128,171,198,170)(133,177,220,180,135,176,219,179)(139,183,223,186,
     141,185,224,184)(143,187,221,190,144,189,222,188)(149,193,228,196,151,
     192,227,195)(157,199,216,202,158,201,215,200)(163,205,234,208,165,204,
     233,207)(166,209,230,212,167,211,229,210)(173,213,235,218,175,217,236,
     214)(225,232,238,240,226,231,237,239);