n=350;
m=700;
X=[243,263,32,349,85,143,199,159,22,234,210,114,53,272,59,325,181,251,303,203,77,174,327,179,29,158,272,24,28,269,345,114,160,292,42,340,8,322,131,263,89,301,178,178,19,137,21,108,241,47,61,238,243,21,12,156,270,275,321,338,304,190,192,162,37,165,207,137,218,218,159,67,119,40,56,67,80,53,230,236,163,130,238,346,312,84,233,346,14,170,122,143,174,147,184,315,30,276,101,133,251,75,222,130,206,177,337,12,165,144,275,274,249,198,43,126,194,30,319,207,96,243,298,34,110,159,77,129,105,195,119,291,5,143,331,337,73,142,169,181,182,312,287,206,302,41,338,184,237,34,61,74,16,91,123,325,206,271,287,215,43,287,345,105,21,149,48,54,350,322,178,172,306,276,214,34,150,267,115,318,2,198,101,28,108,179,313,242,149,30,80,240,347,339,304,52,347,311,85,86,138,222,147,332,170,13,168,63,136,307,333,273,308,339,156,241,319,37,325,50,174,190,223,201,143,233,88,219,238,150,259,290,162,218,142,277,166,8,316,323,97,285,181,302,177,111,110,333,196,207,326,176,317,325,254,321,326,21,283,164,91,309,32,202,136,54,222,147,288,8,200,203,24,69,59,139,231,72,173,325,101,295,93,326,191,28,317,317,209,296,131,81,286,14,262,162,10,229,254,260,295,116,207,138,154,114,177,160,153,294,134,176,283,180,349,172,28,281,93,126,270,124,82,152,171,71,159,76,275,126,144,346,322,47,228,73,156,3,134,318,310,327,80,144,52,319,337,65,76,233,283,88,305,318,222,60,268,265,141,133,113,101,54,213,239,111,25,51,267,134,6,241,34,331,291,235,292,271,266,108,87,261,293,20,244,9,216,6,2,123,176,238,138,248,145,348,278,273,114,223,69,300,54,194,251,339,79,292,182,36,306,67,229,127,192,184,290,272,16,220,244,195,59,87,178,168,247,237,46,35,96,100,292,131,13,316,350,17,303,102,113,36,44,113,332,143,85,114,108,130,283,281,124,39,4,211,285,66,40,227,149,139,110,166,311,35,305,114,74,120,244,293,217,272,34,66,63,280,161,159,128,220,323,199,109,328,184,117,15,130,244,209,17,88,284,121,33,278,98,183,89,160,146,29,74,28,36,118,234,6,189,30,175,331,306,264,160,259,102,259,101,130,129,179,192,283,342,14,344,92,23,58,271,249,123,269,309,17,321,202,31,145,244,293,63,211,250,290,317,174,188,59,117,103,341,191,70,292,301,349,178,151,145,258,208,119,14,328,283,3,344,103,191,15,282,265,74,254,321,107,60,27,342,47,230,112,141,222,17,91,250,87,26,236,54,99,142,96,64,180,327,20,177,47,31,86,10,18,344,143,103,261,281,171,284,214,267,269,270,106,318,177,245,35,201,339,34,319,109,264,36,323,150,22,149,150,99,28,320,316,101,215,331,91,177,67,285,313,302,156,196,191,70,155,244,71,341,110,224,311,311,108,127,260,107,49,92,157,120,180,297,40,51,142,313,339,193,199,328,278,219,206,139,95,89,313,132,197,14,136,273,168,115,258,140,260,265,133,108,325];