pair,contact1,contact2,flow1,flow2 2lwl_A_,1,5,1,1 2lwl_A_,2,6,1,1 2lwl_A_,3,7,1,1 2lwl_A_,3,13,1,1 2lwl_A_,3,27,1,1 2lwl_A_,4,8,1,1 2lwl_A_,5,9,1,1 2lwl_A_,6,11,1,1 2lwl_A_,7,10,1,1 2lwl_A_,12,34,1,1 2lwl_A_,14,32,1,1 2lwl_A_,18,21,1,1 2lwl_A_,19,21,1,1 2lwl_A_,20,37,1,1 2lwl_A_,21,36,1,1 2lwl_A_,22,35,1,1 2lwl_A_,24,33,1,1 2lwl_A_,25,33,1,1 2lwl_A_,27,31,1,1 2lwl_A_,28,31,1,1 2lwl_A_,32,34,1,1 2lwl_A_,41,43,1,1 2lwl_A_,42,45,1,1