pair,contact1,contact2,flow1,flow2 6z1u_b_,1,5,1,1 6z1u_b_,2,6,1,1 6z1u_b_,3,7,1,1 6z1u_b_,4,8,1,1 6z1u_b_,5,9,1,1 6z1u_b_,6,10,1,1 6z1u_b_,7,10,1,1 6z1u_b_,7,11,1,1 6z1u_b_,8,12,1,1 6z1u_b_,10,14,1,1 6z1u_b_,11,15,1,1 6z1u_b_,12,16,1,1 6z1u_b_,13,17,1,1 6z1u_b_,14,18,1,1 6z1u_b_,15,19,1,1 6z1u_b_,16,20,1,1 6z1u_b_,18,21,1,1 6z1u_b_,18,22,1,1 6z1u_b_,19,22,1,1 6z1u_b_,19,23,1,1 6z1u_b_,21,24,1,1 6z1u_b_,23,27,1,1 6z1u_b_,27,31,1,1 6z1u_b_,28,31,1,1 6z1u_b_,28,32,1,1 6z1u_b_,29,33,1,1 6z1u_b_,30,34,1,1 6z1u_b_,31,35,1,1 6z1u_b_,32,36,1,1 6z1u_b_,33,37,1,1 6z1u_b_,34,38,1,1 6z1u_b_,35,39,1,1 6z1u_b_,36,40,1,1 6z1u_b_,37,41,1,1 6z1u_b_,38,42,1,1 6z1u_b_,39,43,1,1 6z1u_b_,40,44,1,1 6z1u_b_,41,45,1,1 6z1u_b_,43,46,1,1