pair,contact1,contact2,flow1,flow2 2k4t_A_,1,3,1,1 2k4t_A_,6,10,1,1 2k4t_A_,8,11,1,1 2k4t_A_,10,183,1,1 2k4t_A_,22,51,1,1 2k4t_A_,26,275,1,1 2k4t_A_,26,277,1,1 2k4t_A_,27,47,1,1 2k4t_A_,28,277,1,1 2k4t_A_,28,279,1,1 2k4t_A_,29,45,1,1 2k4t_A_,30,279,1,1 2k4t_A_,30,281,1,1 2k4t_A_,31,43,1,1 2k4t_A_,33,41,1,1 2k4t_A_,35,39,1,1 2k4t_A_,38,63,1,1 2k4t_A_,40,61,1,1 2k4t_A_,42,59,1,1 2k4t_A_,44,57,1,1 2k4t_A_,46,55,1,1 2k4t_A_,58,75,1,1 2k4t_A_,60,73,1,1 2k4t_A_,62,71,1,1 2k4t_A_,68,88,1,1 2k4t_A_,70,86,1,1 2k4t_A_,72,84,1,1 2k4t_A_,74,82,1,1 2k4t_A_,76,80,1,1 2k4t_A_,77,80,1,1 2k4t_A_,81,102,1,1 2k4t_A_,81,103,1,1 2k4t_A_,83,101,1,1 2k4t_A_,85,99,1,1 2k4t_A_,87,97,1,1 2k4t_A_,94,119,1,1 2k4t_A_,96,117,1,1 2k4t_A_,98,115,1,1 2k4t_A_,100,113,1,1 2k4t_A_,102,111,1,1 2k4t_A_,104,109,1,1 2k4t_A_,112,131,1,1 2k4t_A_,114,129,1,1 2k4t_A_,116,127,1,1 2k4t_A_,118,125,1,1 2k4t_A_,120,123,1,1 2k4t_A_,124,143,1,1 2k4t_A_,126,141,1,1 2k4t_A_,128,139,1,1 2k4t_A_,130,137,1,1 2k4t_A_,130,139,1,1 2k4t_A_,138,157,1,1 2k4t_A_,140,155,1,1 2k4t_A_,142,153,1,1 2k4t_A_,144,151,1,1 2k4t_A_,146,149,1,1 2k4t_A_,148,174,1,1 2k4t_A_,150,172,1,1 2k4t_A_,152,170,1,1 2k4t_A_,154,168,1,1 2k4t_A_,167,186,1,1 2k4t_A_,169,184,1,1 2k4t_A_,171,182,1,1 2k4t_A_,173,180,1,1 2k4t_A_,175,178,1,1 2k4t_A_,179,195,1,1 2k4t_A_,181,193,1,1 2k4t_A_,183,191,1,1 2k4t_A_,185,189,1,1 2k4t_A_,188,212,1,1 2k4t_A_,190,210,1,1 2k4t_A_,192,208,1,1 2k4t_A_,194,206,1,1 2k4t_A_,196,204,1,1 2k4t_A_,203,224,1,1 2k4t_A_,205,222,1,1 2k4t_A_,207,220,1,1 2k4t_A_,209,218,1,1 2k4t_A_,211,214,1,1 2k4t_A_,219,239,1,1 2k4t_A_,221,237,1,1 2k4t_A_,223,235,1,1 2k4t_A_,225,233,1,1 2k4t_A_,228,231,1,1 2k4t_A_,230,250,1,1 2k4t_A_,232,248,1,1 2k4t_A_,234,246,1,1 2k4t_A_,236,244,1,1 2k4t_A_,238,240,1,1 2k4t_A_,238,242,1,1 2k4t_A_,243,263,1,1 2k4t_A_,245,261,1,1 2k4t_A_,247,259,1,1 2k4t_A_,248,257,1,1 2k4t_A_,249,257,1,1 2k4t_A_,251,255,1,1 2k4t_A_,253,255,1,1 2k4t_A_,258,278,1,1 2k4t_A_,260,276,1,1 2k4t_A_,262,274,1,1 2k4t_A_,264,267,1,1 2k4t_A_,268,271,1,1