pair,contact1,contact2,flow1,flow2 7pic_z_,2,3,1,1 7pic_z_,6,20,1,1 7pic_z_,7,18,1,1 7pic_z_,7,49,1,1 7pic_z_,8,18,1,1 7pic_z_,9,47,1,1 7pic_z_,10,13,1,1 7pic_z_,10,14,1,1 7pic_z_,10,17,1,1 7pic_z_,13,15,1,1 7pic_z_,13,17,1,1 7pic_z_,15,39,1,1 7pic_z_,18,36,1,1 7pic_z_,22,23,1,1 7pic_z_,22,27,1,1 7pic_z_,23,26,1,1 7pic_z_,30,31,1,1 7pic_z_,31,48,1,1 7pic_z_,33,46,1,1 7pic_z_,35,44,1,1 7pic_z_,37,42,1,1 7pic_z_,42,43,1,1 7pic_z_,44,46,1,1