pair,contact1,contact2,flow1,flow2 7ssn_l_,1,4,1,1 7ssn_l_,6,7,1,1 7ssn_l_,8,11,1,1 7ssn_l_,19,20,1,1 7ssn_l_,21,24,1,1 7ssn_l_,22,25,1,1 7ssn_l_,28,29,1,1 7ssn_l_,29,32,1,1 7ssn_l_,32,38,1,1 7ssn_l_,34,39,1,1 7ssn_l_,36,39,1,1 7ssn_l_,36,40,1,1 7ssn_l_,37,44,1,1 7ssn_l_,40,43,1,1 7ssn_l_,46,49,1,1 7ssn_l_,50,56,1,1 7ssn_l_,54,59,1,1 7ssn_l_,55,58,1,1 7ssn_l_,55,59,1,1 7ssn_l_,68,71,1,1 7ssn_l_,69,73,1,1 7ssn_l_,72,105,1,1 7ssn_l_,74,106,1,1 7ssn_l_,76,110,1,1 7ssn_l_,79,82,1,1 7ssn_l_,79,113,1,1 7ssn_l_,90,93,1,1 7ssn_l_,92,93,1,1 7ssn_l_,93,97,1,1 7ssn_l_,94,99,1,1 7ssn_l_,94,100,1,1 7ssn_l_,95,98,1,1 7ssn_l_,95,101,1,1 7ssn_l_,95,104,1,1 7ssn_l_,109,125,1,1 7ssn_l_,109,127,1,1 7ssn_l_,116,117,1,1 7ssn_l_,121,140,1,1 7ssn_l_,122,142,1,1 7ssn_l_,123,142,1,1 7ssn_l_,131,134,1,1 7ssn_l_,131,135,1,1 7ssn_l_,132,136,1,1 7ssn_l_,134,139,1,1 7ssn_l_,135,138,1,1