pair,contact1,contact2,flow1,flow2 3i55_U_,3,8,1,1 3i55_U_,4,27,1,1 3i55_U_,5,41,1,1 3i55_U_,5,51,1,1 3i55_U_,6,8,1,1 3i55_U_,8,29,1,1 3i55_U_,16,28,1,1 3i55_U_,18,26,1,1 3i55_U_,20,24,1,1 3i55_U_,20,26,1,1 3i55_U_,22,24,1,1 3i55_U_,23,25,1,1 3i55_U_,29,30,1,1 3i55_U_,30,34,1,1 3i55_U_,31,35,1,1 3i55_U_,33,36,1,1 3i55_U_,33,37,1,1 3i55_U_,36,39,1,1 3i55_U_,37,40,1,1 3i55_U_,42,45,1,1 3i55_U_,46,49,1,1 3i55_U_,49,53,1,1