z1 := (1,3)(4,5,8,6)(7,10,16,11)(9,13,21,14)(12,18,28,19)(15,23,35,24)(17,20,
     30,26)(22,32,45,33)(25,37,27,38)(29,41,31,42)(34,47,65,48)(36,50,69,51)
     (39,54,76,55)(43,58,83,59)(44,60,86,61)(46,63,90,64)(49,67,88,62)(52,71,
     101,72)(53,73,104,74)(56,78,112,79)(57,80,114,81)(66,92,130,93)(68,95,
     134,96)(70,98,138,99)(75,106,148,107)(77,109,151,110)(82,116,158,117)(84,
     119,163,120)(85,121,166,122)(87,100,140,124)(89,126,169,127)(91,105,113,
     128)(94,131,108,132)(97,135,115,136)(102,142,189,143)(103,144,123,145)
     (111,153,202,154)(118,160,125,161)(129,171,226,172)(133,176,232,177)(137,
     181,239,182)(139,184)(141,186,245,187)(146,192,254,193)(147,194,217,164)
     (149,188,247,195)(150,196,259,197)(152,199,264,200)(155,204,270,205)(156,
     206,271,207)(157,208,273,209)(159,211,278,212)(162,215,268,203)(165,218)
     (167,220,283,216)(168,221,255,222)(170,180,238,224)(173,227,297,228)(174,
     213)(175,229,299,230)(178,234,304,235)(179,236,307,237)(183,240,311,241)
     (185,243,316,244)(190,249,322,250)(191,251,323,252)(198,261,246,262)(201,
     265,337,266)(210,275,269,276)(214,280,349,281)(219,286,358,287)(223,290,
     364,291)(225,293,368,294)(231,300,375,301)(233,302,342,274)(242,313,394,
     314)(248,319,253,320)(256,325,408,326)(257,327,411,328)(258,329,413,330)
     (260,277,345,332)(263,335,360,288)(267,339,272,296)(279,347,393,348)(282,
     350,431,351)(284,353,435,354)(285,355,436,356)(289,361,443,362)(292,365,
     447,366)(295,370,455,371)(298,372,457,373)(303,378,331,379)(305,381,336,
     382)(306,383,463,384)(308,386,467,387)(309,388)(310,389,469,390)(312,392,
     437,357)(315,395,341,396)(317,398,346,399)(318,400,456,401)(321,403,442,
     404)(324,406,483,407)(333,402,478,416)(334,417,343,418)(338,420,376,421)
     (340,423,503,424)(344,426,501,422)(352,433)(359,439,522,440)(363,444,524,
     445)(367,449,527,450)(369,452,446,453)(377,458,533,459)(380,397,391,438)
     (385,464,538,465)(405,481,550,482)(409,471,487,484)(410,485,554,486)(412,
     488,557,489)(414,490,560,491)(415,492,473,493)(419,497,521,498)(425,505,
     470,506)(427,508,462,509)(428,510,572,511)(430,512,559,513)(432,515,575,
     516)(434,518,514,519)(441,454,531,523)(448,466,539,526)(451,528,570,507)
     (460,534,589,535)(461,496,474,536)(468,540,549,480)(472,520,579,542)(475,
     543,598,544)(476,529,504,545)(477,546,568,502)(479,548,566,500)(494,562,
     582,525)(495,558,530,563)(499,565,577,517)(532,578,584,586)(537,592,587,
     590)(541,580,631,595)(547,602,567,603)(551,597,585,605)(552,581,632,606)
     (553,607,629,576)(555,594,639,609)(556,610,647,611)(561,613,650,614)(564,
     615,628,616)(569,619,608,620)(571,621,646,622)(573,624,658,625)(574,626,
     659,627)(583,633,593,634)(588,596)(591,636,600,637)(599,630)(601,641,618,
     642)(604,644,657,623)(612,648,653,617)(635,660,640,662)(638,663)(643,661)
     (645,665)(649,666,668,655)(651,667,669,656)(652,654);