pair,contact1,contact2,flow1,flow2 3vdk_A_,7,10,1,1 3vdk_A_,7,11,1,1 3vdk_A_,8,12,1,1 3vdk_A_,8,55,1,1 3vdk_A_,9,13,1,1 3vdk_A_,10,13,1,1 3vdk_A_,10,14,1,1 3vdk_A_,11,15,1,1 3vdk_A_,12,16,1,1 3vdk_A_,13,17,1,1 3vdk_A_,14,18,1,1 3vdk_A_,14,28,1,1 3vdk_A_,16,19,1,1 3vdk_A_,18,21,1,1 3vdk_A_,19,22,1,1 3vdk_A_,19,50,1,1 3vdk_A_,23,25,1,1 3vdk_A_,23,41,1,1 3vdk_A_,24,40,1,1 3vdk_A_,27,28,1,1 3vdk_A_,27,38,1,1 3vdk_A_,27,39,1,1 3vdk_A_,29,31,1,1 3vdk_A_,30,37,1,1 3vdk_A_,34,66,1,1 3vdk_A_,34,67,1,1 3vdk_A_,36,64,1,1 3vdk_A_,38,62,1,1 3vdk_A_,40,60,1,1 3vdk_A_,42,45,1,1 3vdk_A_,42,58,1,1 3vdk_A_,43,46,1,1 3vdk_A_,45,48,1,1 3vdk_A_,45,58,1,1 3vdk_A_,48,58,1,1 3vdk_A_,49,52,1,1 3vdk_A_,54,57,1,1 3vdk_A_,54,58,1,1 3vdk_A_,55,61,1,1 3vdk_A_,59,61,1,1