pair,contact1,contact2,flow1,flow2 2vrd_A_,6,9,1,1 2vrd_A_,6,11,1,1 2vrd_A_,6,24,1,1 2vrd_A_,6,30,1,1 2vrd_A_,7,10,1,1 2vrd_A_,9,24,1,1 2vrd_A_,9,30,1,1 2vrd_A_,15,17,1,1 2vrd_A_,17,19,1,1 2vrd_A_,17,20,1,1 2vrd_A_,17,21,1,1 2vrd_A_,19,23,1,1 2vrd_A_,20,24,1,1 2vrd_A_,21,25,1,1 2vrd_A_,23,26,1,1 2vrd_A_,27,30,1,1 2vrd_A_,28,31,1,1 2vrd_A_,29,33,1,1 2vrd_A_,30,34,1,1 2vrd_A_,31,34,1,1 2vrd_A_,32,35,1,1 2vrd_A_,33,36,1,1 2vrd_A_,34,37,1,1 2vrd_A_,34,38,1,1 2vrd_A_,48,52,1,1 2vrd_A_,49,53,1,1 2vrd_A_,50,54,1,1 2vrd_A_,51,55,1,1 2vrd_A_,52,56,1,1