b11 := (1,19)(2,124)(3,127)(5,16)(6,121)(7,70)(8,73)(9,133)(10,67)(11,32)(12,
     35)(13,129)(14,29)(15,75)(18,122)(20,68)(21,30)(22,95)(23,98)(24,135)(25,
     92)(26,104)(27,100)(28,93)(31,126)(33,72)(36,97)(37,157)(38,160)(39,170)
     (40,154)(41,166)(42,162)(43,155)(44,168)(45,159)(46,140)(47,143)(48,153)
     (49,137)(50,149)(51,145)(52,138)(53,151)(54,142)(55,171)(56,194)(57,197)
     (58,207)(59,191)(60,203)(61,199)(62,192)(63,205)(64,196)(65,209)(66,208)
     (69,125)(74,96)(76,158)(77,141)(78,195)(79,109)(80,112)(81,136)(82,106)
     (83,118)(84,114)(85,107)(86,120)(87,111)(88,169)(89,152)(90,206)(91,110)
     (94,128)(101,161)(102,144)(103,198)(105,113)(108,134)(115,167)(116,150)
     (117,204)(130,156)(131,139)(132,193)(146,164)(148,201)(165,200)(172,257)
     (173,260)(174,270)(175,254)(176,266)(177,262)(178,255)(179,268)(180,259)
     (181,272)(182,271)(183,274)(184,258)(185,269)(186,261)(187,267)(188,256)
     (189,264)(190,263)(210,265)(211,235)(212,238)(213,248)(214,232)(215,244)
     (216,240)(217,233)(218,246)(219,237)(220,250)(221,249)(222,252)(223,236)
     (224,247)(225,239)(226,245)(227,234)(228,242)(229,241)(230,276)(231,243)
     (251,275);