pair,contact1,contact2,flow1,flow2 2dam_A_,8,10,1,1 2dam_A_,10,11,1,1 2dam_A_,15,18,1,1 2dam_A_,15,19,1,1 2dam_A_,16,20,1,1 2dam_A_,17,21,1,1 2dam_A_,18,22,1,1 2dam_A_,19,23,1,1 2dam_A_,20,24,1,1 2dam_A_,21,25,1,1 2dam_A_,22,26,1,1 2dam_A_,23,27,1,1 2dam_A_,24,28,1,1 2dam_A_,25,29,1,1 2dam_A_,26,31,1,1 2dam_A_,26,32,1,1 2dam_A_,33,37,1,1 2dam_A_,34,38,1,1 2dam_A_,35,39,1,1 2dam_A_,36,40,1,1 2dam_A_,37,41,1,1 2dam_A_,38,42,1,1 2dam_A_,39,43,1,1 2dam_A_,40,44,1,1 2dam_A_,41,46,1,1 2dam_A_,42,46,1,1 2dam_A_,47,51,1,1 2dam_A_,48,52,1,1 2dam_A_,50,54,1,1 2dam_A_,52,56,1,1 2dam_A_,53,57,1,1 2dam_A_,54,58,1,1