pair,contact1,contact2,flow1,flow2 6xe0_U_,4,5,1,1 6xe0_U_,10,11,1,1 6xe0_U_,14,17,1,1 6xe0_U_,16,20,1,1 6xe0_U_,17,20,1,1 6xe0_U_,36,39,1,1 6xe0_U_,37,40,1,1 6xe0_U_,37,41,1,1 6xe0_U_,39,43,1,1 6xe0_U_,41,42,1,1 6xe0_U_,44,48,1,1 6xe0_U_,45,49,1,1