pair,contact1,contact2,flow1,flow2 2dbs_A_,1,5,1,1 2dbs_A_,2,6,1,1 2dbs_A_,3,7,1,1 2dbs_A_,4,8,1,1 2dbs_A_,5,9,1,1 2dbs_A_,8,11,1,1 2dbs_A_,9,12,1,1 2dbs_A_,10,14,1,1 2dbs_A_,12,17,1,1 2dbs_A_,12,18,1,1 2dbs_A_,13,15,1,1 2dbs_A_,13,16,1,1 2dbs_A_,17,20,1,1 2dbs_A_,18,21,1,1 2dbs_A_,26,54,1,1 2dbs_A_,26,56,1,1 2dbs_A_,28,56,1,1 2dbs_A_,28,58,1,1 2dbs_A_,30,58,1,1 2dbs_A_,30,60,1,1 2dbs_A_,31,34,1,1 2dbs_A_,32,60,1,1 2dbs_A_,33,62,1,1 2dbs_A_,34,38,1,1 2dbs_A_,35,39,1,1 2dbs_A_,37,41,1,1 2dbs_A_,38,42,1,1 2dbs_A_,39,43,1,1 2dbs_A_,40,44,1,1 2dbs_A_,41,45,1,1 2dbs_A_,55,71,1,1 2dbs_A_,55,74,1,1 2dbs_A_,57,69,1,1 2dbs_A_,57,74,1,1 2dbs_A_,59,66,1,1 2dbs_A_,59,67,1,1 2dbs_A_,61,64,1,1 2dbs_A_,62,64,1,1