pair,contact1,contact2,flow1,flow2 2cax_A_,1,5,1,1 2cax_A_,2,5,1,1 2cax_A_,4,7,1,1 2cax_A_,15,17,1,1 2cax_A_,15,19,1,1 2cax_A_,16,20,1,1 2cax_A_,17,21,1,1 2cax_A_,18,22,1,1 2cax_A_,19,23,1,1 2cax_A_,20,24,1,1 2cax_A_,21,25,1,1 2cax_A_,22,26,1,1 2cax_A_,23,26,1,1 2cax_A_,23,27,1,1 2cax_A_,24,28,1,1 2cax_A_,25,29,1,1 2cax_A_,32,36,1,1 2cax_A_,33,37,1,1 2cax_A_,34,38,1,1 2cax_A_,35,39,1,1 2cax_A_,36,40,1,1 2cax_A_,37,41,1,1 2cax_A_,38,42,1,1 2cax_A_,39,43,1,1 2cax_A_,40,44,1,1 2cax_A_,41,45,1,1 2cax_A_,42,46,1,1 2cax_A_,43,47,1,1 2cax_A_,44,48,1,1 2cax_A_,45,49,1,1 2cax_A_,47,48,1,1 2cax_A_,49,52,1,1 2cax_A_,50,53,1,1