z1 := (2,3,6,4)(5,8,14,9)(7,11,19,12)(10,16,27,17)(13,21,35,22)(15,24,40,25)
     (18,29,47,30)(20,32,52,33)(23,37,59,38)(26,42,66,43)(28,44,69,45)(31,49,
     76,50)(34,54,82,55)(36,57,87,58)(39,60,90,61)(41,63,95,64)(46,71,106,72)
     (48,74,111,75)(51,78,115,79)(53,81,113,77)(56,84,123,85)(62,92,133,93)
     (65,97,141,98)(67,100)(68,101)(70,103,150,104)(73,108,158,109)(80,117,
     170,118)(83,121)(86,125,175,122)(88,127)(89,112,163,128)(91,130,185,131)
     (94,135,192,136)(96,138,196,139)(99,143,203,144)(102,147,210,148)(105,
     152,217,153)(107,155,221,156)(110,160,228,161)(114,165)(116,167,238,168)
     (119,171)(120,172,241,173)(124,176,169,177)(126,178,248,179)(129,182,254,
     183)(132,187,260,188)(134,189,263,190)(137,154,219,194)(140,198,274,199)
     (142,200,277,201)(145,205,283,206)(146,207,284,208)(149,212,290,213)(151,
     214,293,215)(157,223,301,224)(159,225,304,226)(162,230,268,231)(164,233,
     314,234)(166,236,318,237)(174,243,326,244)(180,191,265,250)(181,251,334,
     252)(184,256,308,229)(186,258,342,259)(193,267)(195,269,218,270)(197,272,
     356,273)(202,278,362,279)(204,280,363,281)(209,286,333,287)(211,288,368,
     289)(216,294,372,295)(220,297)(222,235,316,299)(227,305,385,306)(232,311,
     391,312)(239,320,395,321)(240,322,397,323)(242,324,313,325)(245,327,401,
     328)(247,329,403,330)(249,331,317,332)(253,336,408,337)(255,309)(257,339,
     410,340)(261,345,359,276)(262,302,361,346)(264,348,407,349)(266,351,377,
     298)(271,353,422,354)(275,357,376,358)(282,285,365,364)(291,370,382,303)
     (292,371,352,366)(296,374,421,375)(300,379,433,380)(307,387,406,388)(310,
     367,427,389)(315,338,409,392)(319,393,441,394)(335,360,424,355)(341,412,
     450,413)(343,415)(344,383,438,416)(347,411,449,418)(350,414,444,396)(369,
     390,373,425)(378,430,458,431)(381,435,452,436)(384,439)(386,426,456,428)
     (398,445)(399,417,453,437)(400,446,447,402)(404,434,419,440)(405,448)
     (420,423,455,451)(429,432,459,457)(442,461,462,443)(454,460);