pair,contact1,contact2,flow1,flow2 2da1_A_,15,18,1,1 2da1_A_,15,19,1,1 2da1_A_,16,20,1,1 2da1_A_,17,20,1,1 2da1_A_,18,21,1,1 2da1_A_,18,22,1,1 2da1_A_,19,22,1,1 2da1_A_,19,23,1,1 2da1_A_,20,24,1,1 2da1_A_,22,26,1,1 2da1_A_,23,27,1,1 2da1_A_,25,29,1,1 2da1_A_,25,39,1,1 2da1_A_,33,35,1,1 2da1_A_,33,37,1,1 2da1_A_,35,39,1,1 2da1_A_,36,40,1,1 2da1_A_,37,41,1,1 2da1_A_,38,42,1,1 2da1_A_,39,43,1,1 2da1_A_,40,44,1,1 2da1_A_,44,46,1,1 2da1_A_,47,51,1,1 2da1_A_,48,52,1,1 2da1_A_,49,53,1,1 2da1_A_,50,54,1,1 2da1_A_,51,55,1,1 2da1_A_,52,56,1,1 2da1_A_,53,57,1,1 2da1_A_,54,58,1,1 2da1_A_,55,59,1,1 2da1_A_,56,60,1,1 2da1_A_,58,62,1,1 2da1_A_,59,63,1,1 2da1_A_,61,64,1,1