z1 := (1,2,5,3)(4,6,8,7)(9,11,16,12)(10,13,19,14)(15,21,30,22)(17,23,33,24)
     (18,25,36,26)(20,27,37,28)(29,39,53,40)(31,32,43,42)(34,45,62,46)(35,47,
     64,48)(38,51,71,52)(41,55,77,56)(44,59,84,60)(49,66,95,67)(50,68,98,69)
     (54,74,107,75)(57,79,115,80)(58,81,118,82)(61,86,126,87)(63,89,129,90)
     (65,92,133,93)(70,100,144,101)(72,103,148,104)(73,105,150,106)(76,109,
     155,110)(78,112,160,113)(83,120,173,121)(85,123,176,124)(88,127,181,128)
     (91,131,186,132)(94,135,189,136)(96,138)(97,139)(99,141,196,142)(102,145,
     199,146)(108,153,211,154)(111,157,122,158)(114,162,223,163)(116,165,228,
     166)(117,167,231,168)(119,170,236,171)(125,177,247,178)(130,183,256,184)
     (134,187,261,188)(137,191,140,192)(143,197,271,198)(147,201,274,202)(149,
     203,275,204)(151,206,277,207)(152,208,280,209)(156,214,290,215)(159,217,
     295,218)(161,220,298,221)(164,225,253,226)(169,233,205,234)(172,238,294,
     239)(174,241,320,242)(175,243,322,244)(179,249,331,250)(180,251,334,252)
     (182,254,336,255)(185,258,195,259)(190,264,200,265)(193,267,308,230)(194,
     229,307,268)(210,282,367,283)(212,285,372,286)(213,287,375,288)(216,292,
     266,293)(219,296,380,297)(222,300,385,301)(224,289,377,303)(227,305,393,
     306)(232,309,396,310)(235,312,401,313)(237,315,405,316)(240,318,410,319)
     (245,323,415,324)(246,325,418,326)(248,328,422,329)(257,338,434,339)(260,
     341,321,342)(262,344,443,345)(263,346)(269,348)(270,349,448,350)(272,352,
     291,353)(273,354,455,355)(276,358,461,359)(278,361,378,362)(279,363,466,
     364)(281,365,468,366)(284,369,471,370)(299,382,482,383)(302,387,486,388)
     (304,390,490,391)(311,398,495,399)(314,402,500,403)(317,407,503,408)(327,
     419,515,420)(330,413,508,423)(332,424,519,425)(333,371,412,426)(335,428,
     523,429)(337,431,526,432)(340,436,347,437)(343,440,534,441)(351,450,547,
     451)(356,457,552,458)(357,459,477,376)(360,463,557,464)(368,460,555,470)
     (373,392,491,474)(374,475)(379,478,538,444)(381,480,568,481)(384,483,469,
     484)(386,485,473,453)(389,487,544,488)(394,395)(397,417,512,494)(400,497,
     537,498)(404,438,513,501)(406,499,518,502)(409,504,584,505)(411,447,543,
     507)(414,509,524,430)(416,511)(421,516,573,517)(427,521,561,467)(433,527,
     586,528)(435,529,590,530)(439,531,452,533)(442,449,545,536)(445,539,596,
     540)(446,541,597,542)(454,548,560,549)(456,550,562,551)(462,522,589,556)
     (465,532,520,559)(472,563)(476,564,479,565)(489,574,496,575)(492,576,582,
     577)(493,578,570,567)(506,579,510,585)(514,588)(525,593)(535,571,608,595)
     (546,598,613,581)(553,600)(554,592)(558,602,591,603)(566,604,601,587)
     (569,606,612,607)(572,609,580,610)(583,614,611,615)(594,599,616,605);