b11 := (1,2)(3,5)(4,7)(6,10)(8,13)(9,12)(14,20)(15,22)(16,24)(17,26)(18,27)(19,
     29)(21,32)(25,36)(28,40)(30,43)(33,47)(34,49)(35,50)(37,53)(38,55)(39,57)
     (41,60)(44,62)(45,64)(46,66)(48,69)(51,72)(52,74)(54,77)(56,79)(58,82)
     (59,84)(61,87)(63,90)(65,92)(67,95)(68,97)(70,100)(71,101)(73,104)(75,
     107)(78,111)(80,109)(81,114)(83,117)(85,120)(86,122)(88,125)(91,128)(93,
     131)(94,132)(96,135)(98,138)(102,140)(103,142)(105,143)(106,144)(108,147)
     (110,150)(112,153)(113,155)(115,156)(116,158)(118,133)(119,161)(121,164)
     (123,166)(124,167)(126,170)(127,171)(129,174)(130,176)(134,181)(136,184)
     (139,186)(141,188)(146,192)(148,195)(149,196)(151,179)(152,200)(154,203)
     (159,208)(160,209)(162,212)(163,211)(168,217)(169,219)(172,223)(173,225)
     (175,228)(177,230)(178,232)(180,235)(182,238)(185,241)(187,244)(189,193)
     (190,248)(191,250)(194,252)(197,254)(198,255)(199,257)(201,220)(202,259)
     (204,262)(205,214)(206,240)(207,264)(210,267)(213,221)(215,263)(216,274)
     (218,276)(222,224)(226,280)(227,282)(229,247)(231,266)(233,287)(234,289)
     (236,277)(237,291)(239,294)(242,284)(243,278)(245,301)(246,302)(249,304)
     (251,307)(253,308)(256,311)(258,313)(260,275)(265,319)(268,322)(269,324)
     (270,326)(271,327)(272,328)(273,330)(279,333)(283,336)(285,339)(286,340)
     (288,299)(290,343)(292,345)(293,347)(295,349)(297,351)(298,352)(300,354)
     (303,356)(305,359)(309,362)(312,365)(317,368)(318,370)(320,373)(321,350)
     (323,375)(329,377)(331,338)(332,376)(334,379)(335,363)(337,348)(341,384)
     (342,383)(344,353)(346,387)(355,392)(358,395)(360,396)(361,389)(364,398)
     (366,381)(367,397)(371,399)(372,380)(374,401)(378,403)(385,405)(386,393)
     (391,394)(402,407)(404,411)(406,408)(413,414);