pair,contact1,contact2,flow1,flow2 4bum_X_,1,121,1,1 4bum_X_,2,121,1,1 4bum_X_,2,122,1,1 4bum_X_,4,124,1,1 4bum_X_,6,9,1,1 4bum_X_,7,10,1,1 4bum_X_,9,12,1,1 4bum_X_,11,15,1,1 4bum_X_,12,16,1,1 4bum_X_,13,17,1,1 4bum_X_,14,18,1,1 4bum_X_,15,19,1,1 4bum_X_,16,20,1,1 4bum_X_,18,236,1,1 4bum_X_,23,26,1,1 4bum_X_,23,260,1,1 4bum_X_,25,49,1,1 4bum_X_,25,275,1,1 4bum_X_,26,277,1,1 4bum_X_,27,47,1,1 4bum_X_,28,277,1,1 4bum_X_,28,279,1,1 4bum_X_,29,45,1,1 4bum_X_,30,44,1,1 4bum_X_,30,279,1,1 4bum_X_,30,281,1,1 4bum_X_,31,43,1,1 4bum_X_,32,281,1,1 4bum_X_,32,283,1,1 4bum_X_,33,41,1,1 4bum_X_,35,37,1,1 4bum_X_,35,38,1,1 4bum_X_,35,39,1,1 4bum_X_,40,61,1,1 4bum_X_,42,59,1,1 4bum_X_,44,57,1,1 4bum_X_,46,55,1,1 4bum_X_,47,48,1,1 4bum_X_,48,51,1,1 4bum_X_,51,53,1,1 4bum_X_,56,77,1,1 4bum_X_,58,75,1,1 4bum_X_,60,73,1,1 4bum_X_,62,71,1,1 4bum_X_,64,66,1,1 4bum_X_,64,67,1,1 4bum_X_,64,69,1,1 4bum_X_,65,68,1,1 4bum_X_,68,88,1,1 4bum_X_,70,86,1,1 4bum_X_,72,84,1,1 4bum_X_,74,82,1,1 4bum_X_,74,84,1,1 4bum_X_,76,78,1,1 4bum_X_,76,79,1,1 4bum_X_,76,80,1,1 4bum_X_,79,106,1,1 4bum_X_,80,104,1,1 4bum_X_,81,103,1,1 4bum_X_,83,101,1,1 4bum_X_,84,86,1,1 4bum_X_,85,99,1,1 4bum_X_,86,98,1,1 4bum_X_,87,97,1,1 4bum_X_,89,95,1,1 4bum_X_,94,119,1,1 4bum_X_,96,117,1,1 4bum_X_,98,115,1,1 4bum_X_,100,113,1,1 4bum_X_,102,111,1,1 4bum_X_,104,108,1,1 4bum_X_,104,109,1,1 4bum_X_,111,131,1,1 4bum_X_,111,132,1,1 4bum_X_,112,131,1,1 4bum_X_,114,129,1,1 4bum_X_,116,127,1,1 4bum_X_,118,125,1,1 4bum_X_,120,123,1,1 4bum_X_,122,145,1,1 4bum_X_,124,143,1,1 4bum_X_,126,141,1,1 4bum_X_,127,139,1,1 4bum_X_,128,139,1,1 4bum_X_,130,137,1,1 4bum_X_,136,159,1,1 4bum_X_,138,157,1,1 4bum_X_,139,156,1,1 4bum_X_,140,155,1,1 4bum_X_,142,153,1,1 4bum_X_,144,151,1,1 4bum_X_,146,149,1,1 4bum_X_,148,174,1,1 4bum_X_,150,172,1,1 4bum_X_,152,170,1,1 4bum_X_,153,167,1,1 4bum_X_,154,168,1,1 4bum_X_,156,165,1,1 4bum_X_,156,166,1,1 4bum_X_,158,160,1,1 4bum_X_,158,161,1,1 4bum_X_,158,163,1,1 4bum_X_,167,186,1,1 4bum_X_,169,184,1,1 4bum_X_,171,182,1,1 4bum_X_,173,180,1,1 4bum_X_,175,178,1,1 4bum_X_,177,197,1,1 4bum_X_,179,195,1,1 4bum_X_,181,193,1,1 4bum_X_,183,191,1,1 4bum_X_,185,188,1,1 4bum_X_,185,189,1,1 4bum_X_,189,218,1,1 4bum_X_,190,210,1,1 4bum_X_,192,208,1,1 4bum_X_,194,206,1,1 4bum_X_,195,203,1,1 4bum_X_,196,204,1,1 4bum_X_,197,200,1,1 4bum_X_,199,201,1,1 4bum_X_,199,202,1,1 4bum_X_,201,226,1,1 4bum_X_,201,227,1,1 4bum_X_,203,224,1,1 4bum_X_,205,222,1,1 4bum_X_,207,220,1,1 4bum_X_,209,218,1,1 4bum_X_,211,212,1,1 4bum_X_,213,214,1,1 4bum_X_,217,239,1,1 4bum_X_,219,239,1,1 4bum_X_,221,237,1,1 4bum_X_,223,235,1,1 4bum_X_,225,232,1,1 4bum_X_,225,233,1,1 4bum_X_,226,228,1,1 4bum_X_,228,230,1,1 4bum_X_,230,250,1,1 4bum_X_,232,248,1,1 4bum_X_,234,246,1,1 4bum_X_,236,244,1,1 4bum_X_,238,241,1,1 4bum_X_,238,242,1,1 4bum_X_,243,263,1,1 4bum_X_,245,261,1,1 4bum_X_,247,249,1,1 4bum_X_,247,259,1,1 4bum_X_,248,257,1,1 4bum_X_,249,257,1,1 4bum_X_,251,255,1,1 4bum_X_,252,255,1,1 4bum_X_,254,282,1,1 4bum_X_,256,280,1,1 4bum_X_,258,278,1,1 4bum_X_,260,276,1,1 4bum_X_,262,274,1,1 4bum_X_,267,273,1,1 4bum_X_,271,273,1,1