pair,contact1,contact2,flow1,flow2 1dt7_B_,3,6,1,1 1dt7_B_,3,7,1,1 1dt7_B_,4,8,1,1 1dt7_B_,5,9,1,1 1dt7_B_,6,10,1,1 1dt7_B_,7,11,1,1 1dt7_B_,8,12,1,1 1dt7_B_,9,13,1,1 1dt7_B_,10,14,1,1 1dt7_B_,12,16,1,1 1dt7_B_,14,17,1,1 1dt7_B_,15,19,1,1 1dt7_B_,16,20,1,1 1dt7_B_,18,21,1,1 1dt7_B_,18,39,1,1 1dt7_B_,19,25,1,1 1dt7_B_,23,25,1,1 1dt7_B_,24,27,1,1 1dt7_B_,28,69,1,1 1dt7_B_,29,32,1,1 1dt7_B_,29,33,1,1 1dt7_B_,30,34,1,1 1dt7_B_,30,67,1,1 1dt7_B_,31,35,1,1 1dt7_B_,32,36,1,1 1dt7_B_,33,37,1,1 1dt7_B_,34,38,1,1 1dt7_B_,35,39,1,1 1dt7_B_,35,40,1,1 1dt7_B_,36,40,1,1 1dt7_B_,50,53,1,1 1dt7_B_,51,55,1,1 1dt7_B_,52,56,1,1 1dt7_B_,53,57,1,1 1dt7_B_,54,58,1,1 1dt7_B_,55,59,1,1 1dt7_B_,57,61,1,1 1dt7_B_,58,62,1,1 1dt7_B_,61,63,1,1 1dt7_B_,62,65,1,1 1dt7_B_,62,66,1,1 1dt7_B_,62,67,1,1 1dt7_B_,64,73,1,1 1dt7_B_,66,68,1,1 1dt7_B_,70,73,1,1 1dt7_B_,70,74,1,1 1dt7_B_,71,75,1,1 1dt7_B_,72,76,1,1 1dt7_B_,73,76,1,1 1dt7_B_,74,77,1,1 1dt7_B_,75,78,1,1 1dt7_B_,76,80,1,1 1dt7_B_,77,81,1,1 1dt7_B_,78,82,1,1 1dt7_B_,79,83,1,1 1dt7_B_,81,85,1,1 1dt7_B_,82,86,1,1 1dt7_B_,83,86,1,1 1dt7_B_,84,88,1,1 1dt7_B_,85,89,1,1 1dt7_B_,90,92,1,1