pair,contact1,contact2,flow1,flow2 1f0s_B_,1,4,1,1 1f0s_B_,2,15,1,1 1f0s_B_,4,7,1,1 1f0s_B_,5,8,1,1 1f0s_B_,6,9,1,1 1f0s_B_,6,11,1,1 1f0s_B_,6,13,1,1 1f0s_B_,8,35,1,1 1f0s_B_,9,12,1,1 1f0s_B_,10,35,1,1 1f0s_B_,10,37,1,1 1f0s_B_,11,25,1,1 1f0s_B_,12,23,1,1 1f0s_B_,14,21,1,1 1f0s_B_,16,19,1,1 1f0s_B_,23,37,1,1 1f0s_B_,25,28,1,1 1f0s_B_,26,45,1,1 1f0s_B_,27,40,1,1 1f0s_B_,28,45,1,1 1f0s_B_,29,38,1,1 1f0s_B_,31,34,1,1 1f0s_B_,31,36,1,1 1f0s_B_,33,35,1,1 1f0s_B_,33,36,1,1 1f0s_B_,43,51,1,1