pair,contact1,contact2,flow1,flow2 7ssn_X_,4,6,1,1 7ssn_X_,8,37,1,1 7ssn_X_,10,14,1,1 7ssn_X_,10,35,1,1 7ssn_X_,11,15,1,1 7ssn_X_,12,15,1,1 7ssn_X_,12,16,1,1 7ssn_X_,13,17,1,1 7ssn_X_,15,19,1,1 7ssn_X_,16,20,1,1 7ssn_X_,18,41,1,1 7ssn_X_,20,24,1,1 7ssn_X_,22,23,1,1 7ssn_X_,27,28,1,1 7ssn_X_,29,48,1,1 7ssn_X_,31,33,1,1 7ssn_X_,33,36,1,1 7ssn_X_,34,70,1,1 7ssn_X_,34,73,1,1 7ssn_X_,35,68,1,1 7ssn_X_,36,69,1,1 7ssn_X_,39,42,1,1 7ssn_X_,42,45,1,1 7ssn_X_,45,60,1,1 7ssn_X_,49,56,1,1 7ssn_X_,51,53,1,1 7ssn_X_,51,54,1,1 7ssn_X_,51,74,1,1 7ssn_X_,61,62,1,1 7ssn_X_,61,64,1,1 7ssn_X_,68,71,1,1 7ssn_X_,69,72,1,1 7ssn_X_,78,79,1,1