pair,contact1,contact2,flow1,flow2 2nd1_A_,1,3,1,1 2nd1_A_,1,4,1,1 2nd1_A_,2,5,1,1 2nd1_A_,2,6,1,1 2nd1_A_,3,7,1,1 2nd1_A_,5,8,1,1 2nd1_A_,8,65,1,1 2nd1_A_,9,65,1,1 2nd1_A_,11,14,1,1 2nd1_A_,11,15,1,1 2nd1_A_,12,16,1,1 2nd1_A_,13,16,1,1 2nd1_A_,13,17,1,1 2nd1_A_,14,18,1,1 2nd1_A_,14,65,1,1 2nd1_A_,15,19,1,1 2nd1_A_,15,57,1,1 2nd1_A_,16,19,1,1 2nd1_A_,16,20,1,1 2nd1_A_,17,20,1,1 2nd1_A_,17,21,1,1 2nd1_A_,18,22,1,1 2nd1_A_,19,23,1,1 2nd1_A_,21,24,1,1 2nd1_A_,22,25,1,1 2nd1_A_,26,30,1,1 2nd1_A_,28,31,1,1 2nd1_A_,29,32,1,1 2nd1_A_,30,34,1,1 2nd1_A_,31,35,1,1 2nd1_A_,32,36,1,1 2nd1_A_,33,37,1,1 2nd1_A_,34,38,1,1 2nd1_A_,35,39,1,1 2nd1_A_,36,40,1,1 2nd1_A_,37,41,1,1 2nd1_A_,40,60,1,1 2nd1_A_,41,44,1,1 2nd1_A_,41,60,1,1 2nd1_A_,41,63,1,1 2nd1_A_,42,45,1,1 2nd1_A_,44,47,1,1 2nd1_A_,46,47,1,1 2nd1_A_,48,51,1,1 2nd1_A_,55,57,1,1 2nd1_A_,55,58,1,1 2nd1_A_,55,59,1,1 2nd1_A_,60,64,1,1 2nd1_A_,61,65,1,1 2nd1_A_,62,66,1,1 2nd1_A_,63,67,1,1 2nd1_A_,64,68,1,1 2nd1_A_,65,68,1,1 2nd1_A_,65,69,1,1 2nd1_A_,66,70,1,1 2nd1_A_,67,71,1,1 2nd1_A_,68,72,1,1 2nd1_A_,69,72,1,1 2nd1_A_,69,73,1,1 2nd1_A_,70,73,1,1 2nd1_A_,71,74,1,1 2nd1_A_,71,75,1,1 2nd1_A_,72,76,1,1 2nd1_A_,75,78,1,1 2nd1_A_,80,83,1,1