pair,contact1,contact2,flow1,flow2 7n28_X_,1,25,1,1 7n28_X_,3,4,1,1 7n28_X_,3,25,1,1 7n28_X_,4,117,1,1 7n28_X_,5,22,1,1 7n28_X_,5,23,1,1 7n28_X_,5,24,1,1 7n28_X_,6,96,1,1 7n28_X_,7,10,1,1 7n28_X_,12,13,1,1 7n28_X_,13,124,1,1 7n28_X_,14,15,1,1 7n28_X_,15,86,1,1 7n28_X_,16,86,1,1 7n28_X_,19,81,1,1 7n28_X_,20,81,1,1 7n28_X_,22,23,1,1 7n28_X_,23,24,1,1 7n28_X_,26,28,1,1 7n28_X_,31,54,1,1 7n28_X_,33,99,1,1 7n28_X_,34,51,1,1 7n28_X_,34,97,1,1 7n28_X_,35,36,1,1 7n28_X_,35,47,1,1 7n28_X_,35,97,1,1 7n28_X_,36,48,1,1 7n28_X_,37,95,1,1 7n28_X_,38,46,1,1 7n28_X_,39,42,1,1 7n28_X_,39,43,1,1 7n28_X_,39,93,1,1 7n28_X_,44,45,1,1 7n28_X_,50,59,1,1 7n28_X_,52,57,1,1 7n28_X_,59,60,1,1 7n28_X_,60,61,1,1 7n28_X_,60,64,1,1 7n28_X_,60,65,1,1 7n28_X_,61,64,1,1 7n28_X_,62,65,1,1 7n28_X_,64,67,1,1 7n28_X_,67,84,1,1 7n28_X_,67,90,1,1 7n28_X_,71,80,1,1 7n28_X_,87,90,1,1 7n28_X_,90,94,1,1 7n28_X_,92,121,1,1 7n28_X_,94,119,1,1 7n28_X_,98,114,1,1 7n28_X_,100,113,1,1 7n28_X_,103,105,1,1 7n28_X_,109,111,1,1 7n28_X_,124,184,1,1 7n28_X_,132,153,1,1 7n28_X_,139,224,1,1 7n28_X_,139,225,1,1 7n28_X_,142,143,1,1 7n28_X_,145,195,1,1 7n28_X_,149,150,1,1 7n28_X_,152,188,1,1 7n28_X_,154,187,1,1 7n28_X_,155,186,1,1 7n28_X_,161,209,1,1 7n28_X_,163,164,1,1 7n28_X_,163,207,1,1 7n28_X_,164,167,1,1 7n28_X_,165,168,1,1 7n28_X_,165,205,1,1 7n28_X_,166,207,1,1 7n28_X_,166,216,1,1 7n28_X_,167,169,1,1 7n28_X_,170,171,1,1 7n28_X_,179,181,1,1 7n28_X_,179,187,1,1 7n28_X_,181,184,1,1 7n28_X_,181,187,1,1 7n28_X_,198,201,1,1 7n28_X_,202,204,1,1 7n28_X_,219,220,1,1