b21 := (1,540,481)(2,557,954)(3,21,1073)(4,483,1056)(5,167,721)(6,1061,188)(7,
     531,221)(8,307,278)(9,454,255)(10,874,706)(11,942,675)(12,853,722)(13,
     367,1123)(14,573,215)(15,419,617)(16,250,430)(17,96,176)(18,377,156)(19,
     867,104)(20,849,900)(22,586,834)(23,133,326)(24,501,366)(25,811,919)(26,
     455,289)(27,422,1059)(28,281,615)(29,266,535)(30,552,793)(31,339,1102)
     (32,1033,962)(33,829,648)(34,537,42)(35,294,651)(36,505,894)(37,1050,229)
     (38,434,111)(39,825,783)(40,437,839)(41,370,460)(43,608,238)(44,609,71)
     (45,739,863)(46,576,732)(47,972,137)(48,391,618)(49,522,249)(50,682,668)
     (51,80,485)(52,1083,861)(53,790,623)(54,893,204)(55,1112,741)(56,695,360)
     (57,382,349)(58,456,891)(59,1004,747)(60,433,827)(61,989,98)(62,1068,94)
     (63,1047,1010)(64,743,282)(65,283,807)(66,397,932)(67,681,496)(68,84,449)
     (69,737,130)(70,841,845)(72,78,306)(73,1098,298)(74,896,661)(75,528,549)
     (76,780,268)(77,719,390)(79,625,506)(81,964,438)(82,1058,844)(83,353,383)
     (85,141,611)(86,520,462)(87,539,157)(88,658,712)(89,945,336)(90,1110,673)
     (91,417,441)(92,526,665)(93,151,918)(95,1117,189)(97,547,171)(99,774,477)
     (100,736,145)(101,368,821)(102,1121,995)(103,559,144)(105,269,799)(106,
     638,172)(107,136,380)(108,291,1125)(109,560,464)(110,795,717)(112,969,
     471)(113,888,311)(114,384,1011)(115,228,472)(116,467,1063)(117,663,1002)
     (118,937,181)(119,742,878)(120,1097,135)(121,670,427)(122,448,824)(123,
     846,1034)(124,683,572)(125,352,205)(126,414,632)(127,190,284)(128,452,
     1100)(129,206,621)(131,196,968)(132,987,960)(134,412,170)(138,762,217)
     (139,329,904)(140,886,1018)(142,974,1044)(143,857,241)(146,910,1041)(147,
     1049,981)(148,1114,155)(149,1092,470)(150,633,873)(152,1013,327)(153,308,
     178)(154,316,1091)(158,809,500)(159,684,318)(160,226,760)(161,1074,996)
     (162,1014,1000)(163,194,1101)(164,543,988)(165,182,490)(166,1046,1037)
     (168,362,961)(169,399,595)(173,636,504)(174,726,444)(175,251,245)(177,
     803,216)(179,949,457)(180,443,319)(183,302,669)(184,400,305)(185,626,593)
     (186,423,624)(187,1040,277)(191,358,950)(192,933,980)(193,508,777)(195,
     482,458)(197,388,899)(198,868,589)(199,1009,934)(200,1072,315)(201,583,
     966)(202,332,915)(203,847,992)(207,351,1096)(208,225,582)(209,794,567)
     (210,1003,993)(211,773,463)(212,224,381)(213,435,1043)(214,880,517)(218,
     620,1119)(219,446,816)(220,720,804)(222,707,314)(223,850,612)(227,614,
     545)(230,667,881)(231,786,813)(232,578,488)(233,333,877)(234,511,473)
     (235,924,579)(236,662,491)(237,1024,542)(239,603,963)(240,855,823)(242,
     371,723)(243,735,750)(244,1057,516)(246,1130,738)(247,300,523)(248,1078,
     890)(252,666,751)(253,875,602)(254,645,970)(256,1082,752)(257,428,348)
     (258,1060,789)(259,898,296)(260,1028,852)(261,1089,476)(262,643,971)(263,
     407,303)(264,729,285)(265,525,758)(267,550,631)(270,655,652)(271,530,497)
     (272,325,570)(273,409,986)(274,660,587)(275,453,938)(276,1128,672)(279,
     598,746)(280,692,647)(286,392,958)(287,820,561)(288,420,403)(290,812,714)
     (292,613,592)(293,650,941)(295,596,355)(297,1106,929)(299,1122,716)(301,
     1077,761)(304,994,1085)(309,1127,935)(310,653,764)(312,865,398)(313,671,
     902)(317,551,1115)(320,600,524)(321,830,715)(322,478,1087)(323,1039,895)
     (324,445,1006)(328,599,808)(330,998,1062)(331,585,479)(334,1042,1051)
     (335,826,927)(337,529,566)(338,939,1079)(340,770,897)(341,754,921)(342,
     425,1109)(343,436,1036)(344,930,639)(345,999,569)(346,728,772)(347,1029,
     1099)(350,975,952)(354,581,512)(356,859,489)(357,796,690)(359,378,480)
     (361,1055,1019)(363,1001,1016)(364,946,784)(365,843,424)(369,1120,756)
     (372,959,465)(373,685,822)(374,882,387)(375,734,810)(376,906,923)(379,
     977,990)(385,701,965)(386,659,597)(389,451,920)(393,432,1023)(394,674,
     503)(395,686,787)(396,411,544)(401,779,513)(402,536,532)(404,907,1017)
     (405,814,775)(406,630,967)(408,577,908)(410,815,1107)(413,1133,1069)(415,
     484,740)(416,828,1116)(418,694,610)(421,487,798)(426,627,515)(429,691,
     591)(431,757,693)(439,936,571)(440,634,664)(442,641,1021)(447,1027,554)
     (450,1035,887)(459,495,976)(461,840,983)(466,509,1020)(468,702,838)(469,
     1118,767)(474,955,510)(475,1015,689)(486,781,947)(492,558,791)(493,833,
     1081)(494,901,854)(498,677,1022)(499,885,601)(502,792,776)(507,801,1064)
     (514,616,1086)(518,745,1054)(519,724,866)(521,1030,889)(527,604,759)(533,
     842,733)(534,1065,806)(538,1104,676)(541,856,785)(546,705,1008)(548,876,
     1126)(553,1012,860)(555,782,564)(556,710,802)(562,1070,584)(563,943,951)
     (565,709,817)(568,912,973)(574,628,1005)(575,800,922)(580,768,1111)(588,
     725,1129)(590,805,713)(594,1071,956)(605,911,619)(606,697,928)(607,848,
     862)(622,1103,640)(629,864,797)(635,704,1067)(637,649,700)(642,997,883)
     (644,982,909)(646,755,858)(654,979,765)(656,749,1132)(657,1032,940)(678,
     788,832)(679,698,1026)(680,708,718)(687,771,1084)(688,1113,778)(696,1076,
     763)(699,835,978)(703,926,819)(711,818,1090)(727,917,913)(730,1093,953)
     (731,957,1048)(744,871,769)(748,1031,1134)(753,851,991)(766,870,869)(831,
     1025,944)(836,1053,1045)(837,892,1007)(872,903,984)(879,1131,985)(884,
     914,1124)(905,1066,1052)(916,1080,1088)(925,948,1108)(931,1075,1105)
     (1038,1095,1094);