pair,contact1,contact2,flow1,flow2 3e7u_X_,1,4,1,1 3e7u_X_,3,11,1,1 3e7u_X_,5,9,1,1 3e7u_X_,6,9,1,1 3e7u_X_,6,34,1,1 3e7u_X_,11,14,1,1 3e7u_X_,11,15,1,1 3e7u_X_,12,16,1,1 3e7u_X_,12,30,1,1 3e7u_X_,13,17,1,1 3e7u_X_,14,18,1,1 3e7u_X_,15,19,1,1 3e7u_X_,15,37,1,1 3e7u_X_,16,20,1,1 3e7u_X_,16,28,1,1 3e7u_X_,18,21,1,1 3e7u_X_,19,22,1,1 3e7u_X_,20,26,1,1 3e7u_X_,22,25,1,1 3e7u_X_,26,40,1,1 3e7u_X_,27,40,1,1 3e7u_X_,29,38,1,1 3e7u_X_,31,34,1,1 3e7u_X_,31,36,1,1 3e7u_X_,32,35,1,1