b := (  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15)
( 16, 30, 43, 55, 66, 76, 85, 93,100,106,111,115,118,120, 29)
( 17, 31, 44, 56, 67, 77, 86, 94,101,107,112,116,119, 28, 42)
( 18, 32, 45, 57, 68, 78, 87, 95,102,108,113,117, 27, 41, 54)
( 19, 33, 46, 58, 69, 79, 88, 96,103,109,114, 26, 40, 53, 65)
( 20, 34, 47, 59, 70, 80, 89, 97,104,110, 25, 39, 52, 64, 75)
( 21, 35, 48, 60, 71, 81, 90, 98,105, 24, 38, 51, 63, 74, 84)
( 22, 36, 49, 61, 72, 82, 91, 99, 23, 37, 50, 62, 73, 83, 92)
(121,135,148,160,171,181,190,198,205,211,216,220,223,225,134)
(122,136,149,161,172,182,191,199,206,212,217,221,224,133,147)
(123,137,150,162,173,183,192,200,207,213,218,222,132,146,159)
(124,138,151,163,174,184,193,201,208,214,219,131,145,158,170)
(125,139,152,164,175,185,194,202,209,215,130,144,157,169,180)
(126,140,153,165,176,186,195,203,210,129,143,156,168,179,189)
(127,141,154,166,177,187,196,204,128,142,155,167,178,188,197)
(226,317,395,461,516,561,597,625,646,661,671,677,680,316,238)
(227,318,396,462,517,562,598,626,647,662,672,678,314,394,250)
(228,319,397,463,518,563,599,627,648,663,673,311,392,460,261)
(229,320,398,464,519,564,600,628,649,664,307,389,458,515,271)
(230,321,399,465,520,565,601,629,650,302,385,455,513,560,280)
(231,322,400,466,521,566,602,630,296,380,451,510,558,596,288)
(232,323,401,467,522,567,603,289,374,446,506,555,594,624,295)
(233,324,402,468,523,568,281,367,440,501,551,591,622,645,301)
(234,325,403,469,524,272,359,433,495,546,587,619,643,660,306)
(235,326,404,470,262,350,425,488,540,582,615,640,658,670,310)
(236,327,405,251,340,416,480,533,576,610,636,655,668,676,313)
(237,328,239,329,406,471,525,569,604,631,651,665,674,679,315)
(240,330,407,472,526,570,605,632,652,666,675,312,393,249,339)
(241,331,408,473,527,571,606,633,653,667,308,390,459,260,349)
(242,332,409,474,528,572,607,634,654,303,386,456,514,270,358)
(243,333,410,475,529,573,608,635,297,381,452,511,559,279,366)
(244,334,411,476,530,574,609,290,375,447,507,556,595,287,373)
(245,335,412,477,531,575,282,368,441,502,552,592,623,294,379)
(246,336,413,478,532,273,360,434,496,547,588,620,644,300,384)
(247,337,414,479,263,351,426,489,541,583,616,641,659,305,388)
(248,338,415,252,341,417,481,534,577,611,637,656,669,309,391)
(253,342,418,482,535,578,612,638,657,304,387,457,259,348,424)
(254,343,419,483,536,579,613,639,298,382,453,512,269,357,432)
(255,344,420,484,537,580,614,291,376,448,508,557,278,365,439)
(256,345,421,485,538,581,283,369,442,503,553,593,286,372,445)
(257,346,422,486,539,274,361,435,497,548,589,621,293,378,450)
(258,347,423,487,264,352,427,490,542,584,617,642,299,383,454)
(265,353,428,491,543,585,618,292,377,449,509,268,356,431,494)
(266,354,429,492,544,586,284,370,443,504,554,277,364,438,500)
(267,355,430,493,545,275,362,436,498,549,590,285,371,444,505)
(276,363,437,499,550);