pair,contact1,contact2,flow1,flow2 1di2_A_,1,5,1,1 1di2_A_,2,6,1,1 1di2_A_,3,7,1,1 1di2_A_,4,8,1,1 1di2_A_,5,9,1,1 1di2_A_,6,10,1,1 1di2_A_,7,11,1,1 1di2_A_,8,12,1,1 1di2_A_,9,13,1,1 1di2_A_,10,15,1,1 1di2_A_,11,14,1,1 1di2_A_,16,19,1,1 1di2_A_,19,39,1,1 1di2_A_,21,37,1,1 1di2_A_,23,35,1,1 1di2_A_,24,25,1,1 1di2_A_,24,35,1,1 1di2_A_,26,33,1,1 1di2_A_,27,32,1,1 1di2_A_,28,31,1,1 1di2_A_,34,49,1,1 1di2_A_,35,48,1,1 1di2_A_,36,47,1,1 1di2_A_,38,45,1,1 1di2_A_,40,43,1,1 1di2_A_,41,42,1,1 1di2_A_,45,46,1,1 1di2_A_,46,62,1,1 1di2_A_,51,54,1,1 1di2_A_,51,55,1,1 1di2_A_,52,56,1,1 1di2_A_,53,57,1,1 1di2_A_,54,58,1,1 1di2_A_,55,59,1,1 1di2_A_,56,60,1,1 1di2_A_,57,61,1,1 1di2_A_,58,62,1,1 1di2_A_,59,63,1,1 1di2_A_,60,64,1,1 1di2_A_,61,65,1,1 1di2_A_,62,66,1,1 1di2_A_,63,67,1,1 1di2_A_,64,68,1,1 1di2_A_,65,69,1,1 1di2_A_,66,69,1,1