pair,contact1,contact2,flow1,flow2 6tn7_B_,3,7,1,1 6tn7_B_,4,8,1,1 6tn7_B_,5,9,1,1 6tn7_B_,6,10,1,1 6tn7_B_,7,11,1,1 6tn7_B_,10,13,1,1 6tn7_B_,13,28,1,1 6tn7_B_,15,19,1,1 6tn7_B_,16,19,1,1 6tn7_B_,19,27,1,1 6tn7_B_,20,24,1,1 6tn7_B_,21,25,1,1 6tn7_B_,21,79,1,1 6tn7_B_,22,23,1,1 6tn7_B_,22,26,1,1 6tn7_B_,23,27,1,1 6tn7_B_,24,28,1,1 6tn7_B_,25,29,1,1 6tn7_B_,26,30,1,1 6tn7_B_,27,31,1,1 6tn7_B_,28,32,1,1 6tn7_B_,29,33,1,1 6tn7_B_,30,34,1,1 6tn7_B_,31,35,1,1 6tn7_B_,32,36,1,1 6tn7_B_,32,43,1,1 6tn7_B_,36,39,1,1 6tn7_B_,40,43,1,1 6tn7_B_,40,44,1,1 6tn7_B_,41,45,1,1 6tn7_B_,41,68,1,1 6tn7_B_,42,46,1,1 6tn7_B_,43,47,1,1 6tn7_B_,44,48,1,1 6tn7_B_,45,49,1,1 6tn7_B_,46,50,1,1 6tn7_B_,48,51,1,1 6tn7_B_,49,52,1,1 6tn7_B_,50,57,1,1 6tn7_B_,53,56,1,1 6tn7_B_,53,57,1,1 6tn7_B_,54,58,1,1 6tn7_B_,55,58,1,1 6tn7_B_,56,59,1,1 6tn7_B_,56,60,1,1 6tn7_B_,57,61,1,1 6tn7_B_,58,62,1,1 6tn7_B_,59,62,1,1 6tn7_B_,59,74,1,1 6tn7_B_,63,74,1,1 6tn7_B_,66,70,1,1 6tn7_B_,67,70,1,1 6tn7_B_,67,71,1,1 6tn7_B_,68,72,1,1 6tn7_B_,69,73,1,1 6tn7_B_,70,74,1,1 6tn7_B_,71,75,1,1 6tn7_B_,72,76,1,1 6tn7_B_,73,77,1,1 6tn7_B_,74,78,1,1 6tn7_B_,75,79,1,1 6tn7_B_,76,80,1,1 6tn7_B_,77,81,1,1 6tn7_B_,78,82,1,1 6tn7_B_,79,83,1,1 6tn7_B_,80,84,1,1 6tn7_B_,81,85,1,1