a := (  2,121, 16)(  3,122, 17)(  4,123, 18)(  5,124, 19)(  6,125, 20)
(  7,126, 21)(  8,127, 22)(  9,128, 23)( 10,129, 24)( 11,130, 25)
( 12,131, 26)( 13,132, 27)( 14,133, 28)( 15,134, 29)( 30,135,226)
( 31,136,227)( 32,137,228)( 33,138,229)( 34,139,230)( 35,140,231)
( 36,141,232)( 37,142,233)( 38,143,234)( 39,144,235)( 40,145,236)
( 41,146,237)( 42,147,238)( 43,148,239)( 44,149,240)( 45,150,241)
( 46,151,242)( 47,152,243)( 48,153,244)( 49,154,245)( 50,155,246)
( 51,156,247)( 52,157,248)( 53,158,249)( 54,159,250)( 55,160,251)
( 56,161,252)( 57,162,253)( 58,163,254)( 59,164,255)( 60,165,256)
( 61,166,257)( 62,167,258)( 63,168,259)( 64,169,260)( 65,170,261)
( 66,171,262)( 67,172,263)( 68,173,264)( 69,174,265)( 70,175,266)
( 71,176,267)( 72,177,268)( 73,178,269)( 74,179,270)( 75,180,271)
( 76,181,272)( 77,182,273)( 78,183,274)( 79,184,275)( 80,185,276)
( 81,186,277)( 82,187,278)( 83,188,279)( 84,189,280)( 85,190,281)
( 86,191,282)( 87,192,283)( 88,193,284)( 89,194,285)( 90,195,286)
( 91,196,287)( 92,197,288)( 93,198,289)( 94,199,290)( 95,200,291)
( 96,201,292)( 97,202,293)( 98,203,294)( 99,204,295)(100,205,296)
(101,206,297)(102,207,298)(103,208,299)(104,209,300)(105,210,301)
(106,211,302)(107,212,303)(108,213,304)(109,214,305)(110,215,306)
(111,216,307)(112,217,308)(113,218,309)(114,219,310)(115,220,311)
(116,221,312)(117,222,313)(118,223,314)(119,224,315)(120,225,316);