pair,contact1,contact2,flow1,flow2 2cpg_A_,10,12,1,1 2cpg_A_,10,13,1,1 2cpg_A_,10,14,1,1 2cpg_A_,11,15,1,1 2cpg_A_,12,16,1,1 2cpg_A_,13,17,1,1 2cpg_A_,14,18,1,1 2cpg_A_,15,19,1,1 2cpg_A_,16,20,1,1 2cpg_A_,17,21,1,1 2cpg_A_,18,22,1,1 2cpg_A_,19,23,1,1 2cpg_A_,20,24,1,1 2cpg_A_,21,26,1,1 2cpg_A_,22,25,1,1 2cpg_A_,27,30,1,1 2cpg_A_,27,31,1,1 2cpg_A_,28,32,1,1 2cpg_A_,29,33,1,1 2cpg_A_,30,34,1,1 2cpg_A_,31,35,1,1 2cpg_A_,32,36,1,1 2cpg_A_,33,37,1,1 2cpg_A_,34,38,1,1 2cpg_A_,35,39,1,1 2cpg_A_,36,40,1,1 2cpg_A_,37,41,1,1 2cpg_A_,38,42,1,1 2cpg_A_,39,42,1,1 2cpg_A_,41,43,1,1