pair,contact1,contact2,flow1,flow2 2dch_X_,7,13,1,1 2dch_X_,13,17,1,1 2dch_X_,13,102,1,1 2dch_X_,14,18,1,1 2dch_X_,15,19,1,1 2dch_X_,16,20,1,1 2dch_X_,16,102,1,1 2dch_X_,17,21,1,1 2dch_X_,17,112,1,1 2dch_X_,18,22,1,1 2dch_X_,19,23,1,1 2dch_X_,20,24,1,1 2dch_X_,21,25,1,1 2dch_X_,22,26,1,1 2dch_X_,25,37,1,1 2dch_X_,25,38,1,1 2dch_X_,27,35,1,1 2dch_X_,28,91,1,1 2dch_X_,29,32,1,1 2dch_X_,29,33,1,1 2dch_X_,29,80,1,1 2dch_X_,31,75,1,1 2dch_X_,34,74,1,1 2dch_X_,35,73,1,1 2dch_X_,36,72,1,1 2dch_X_,38,70,1,1 2dch_X_,38,113,1,1 2dch_X_,40,43,1,1 2dch_X_,40,44,1,1 2dch_X_,41,45,1,1 2dch_X_,42,190,1,1 2dch_X_,43,46,1,1 2dch_X_,43,47,1,1 2dch_X_,44,48,1,1 2dch_X_,45,49,1,1 2dch_X_,46,50,1,1 2dch_X_,46,184,1,1 2dch_X_,47,51,1,1 2dch_X_,48,52,1,1 2dch_X_,49,53,1,1 2dch_X_,50,54,1,1 2dch_X_,51,56,1,1 2dch_X_,52,55,1,1 2dch_X_,54,78,1,1 2dch_X_,59,73,1,1 2dch_X_,60,73,1,1 2dch_X_,62,71,1,1 2dch_X_,64,67,1,1 2dch_X_,64,68,1,1 2dch_X_,64,69,1,1 2dch_X_,64,71,1,1 2dch_X_,76,78,1,1 2dch_X_,76,79,1,1 2dch_X_,76,80,1,1 2dch_X_,77,81,1,1 2dch_X_,78,82,1,1 2dch_X_,79,83,1,1 2dch_X_,80,84,1,1 2dch_X_,81,85,1,1 2dch_X_,82,85,1,1 2dch_X_,83,86,1,1 2dch_X_,83,88,1,1 2dch_X_,86,98,1,1 2dch_X_,87,95,1,1 2dch_X_,94,140,1,1 2dch_X_,98,101,1,1 2dch_X_,102,105,1,1 2dch_X_,102,106,1,1 2dch_X_,103,107,1,1 2dch_X_,104,108,1,1 2dch_X_,105,109,1,1 2dch_X_,106,110,1,1 2dch_X_,107,111,1,1 2dch_X_,108,112,1,1 2dch_X_,109,113,1,1 2dch_X_,110,114,1,1 2dch_X_,111,115,1,1 2dch_X_,112,184,1,1 2dch_X_,112,185,1,1 2dch_X_,115,188,1,1 2dch_X_,116,118,1,1 2dch_X_,116,135,1,1 2dch_X_,117,191,1,1 2dch_X_,118,133,1,1 2dch_X_,119,198,1,1 2dch_X_,120,131,1,1 2dch_X_,122,129,1,1 2dch_X_,123,128,1,1 2dch_X_,124,127,1,1 2dch_X_,125,127,1,1 2dch_X_,127,129,1,1 2dch_X_,130,200,1,1 2dch_X_,130,202,1,1 2dch_X_,132,173,1,1 2dch_X_,133,172,1,1 2dch_X_,134,171,1,1 2dch_X_,136,169,1,1 2dch_X_,137,165,1,1 2dch_X_,138,140,1,1 2dch_X_,138,167,1,1 2dch_X_,140,143,1,1 2dch_X_,140,144,1,1 2dch_X_,141,145,1,1 2dch_X_,142,146,1,1 2dch_X_,143,147,1,1 2dch_X_,144,145,1,1 2dch_X_,144,148,1,1 2dch_X_,144,162,1,1 2dch_X_,144,168,1,1 2dch_X_,145,149,1,1 2dch_X_,145,160,1,1 2dch_X_,146,150,1,1 2dch_X_,147,151,1,1 2dch_X_,148,152,1,1 2dch_X_,149,153,1,1 2dch_X_,150,154,1,1 2dch_X_,151,156,1,1 2dch_X_,152,155,1,1 2dch_X_,152,158,1,1 2dch_X_,155,178,1,1 2dch_X_,157,175,1,1 2dch_X_,159,170,1,1 2dch_X_,161,168,1,1 2dch_X_,163,166,1,1 2dch_X_,172,175,1,1 2dch_X_,173,177,1,1 2dch_X_,174,178,1,1 2dch_X_,175,178,1,1 2dch_X_,176,179,1,1 2dch_X_,176,180,1,1 2dch_X_,179,182,1,1 2dch_X_,180,183,1,1 2dch_X_,185,188,1,1 2dch_X_,185,189,1,1 2dch_X_,186,190,1,1 2dch_X_,187,191,1,1 2dch_X_,188,192,1,1 2dch_X_,189,193,1,1 2dch_X_,190,194,1,1 2dch_X_,192,195,1,1 2dch_X_,193,196,1,1 2dch_X_,194,197,1,1 2dch_X_,195,198,1,1