pair,contact1,contact2,flow1,flow2 2ys2_A_,15,39,1,1 2ys2_A_,16,27,1,1 2ys2_A_,16,28,1,1 2ys2_A_,16,38,1,1 2ys2_A_,19,26,1,1 2ys2_A_,21,24,1,1 2ys2_A_,26,29,1,1 2ys2_A_,38,39,1,1