pair,contact1,contact2,flow1,flow2 8irh_Y_,1,5,1,1 8irh_Y_,2,6,1,1 8irh_Y_,3,7,1,1 8irh_Y_,4,8,1,1 8irh_Y_,5,9,1,1 8irh_Y_,6,10,1,1 8irh_Y_,7,11,1,1 8irh_Y_,8,12,1,1 8irh_Y_,9,13,1,1 8irh_Y_,10,14,1,1 8irh_Y_,11,14,1,1 8irh_Y_,13,17,1,1 8irh_Y_,14,18,1,1 8irh_Y_,15,19,1,1 8irh_Y_,16,20,1,1 8irh_Y_,17,21,1,1 8irh_Y_,18,22,1,1 8irh_Y_,19,23,1,1 8irh_Y_,20,24,1,1 8irh_Y_,21,25,1,1 8irh_Y_,22,27,1,1 8irh_Y_,23,26,1,1 8irh_Y_,27,29,1,1