pair,contact1,contact2,flow1,flow2 7m4z_1_,3,6,1,1 7m4z_1_,8,12,1,1 7m4z_1_,9,13,1,1 7m4z_1_,10,14,1,1 7m4z_1_,11,15,1,1 7m4z_1_,12,16,1,1 7m4z_1_,17,21,1,1 7m4z_1_,18,22,1,1 7m4z_1_,19,23,1,1 7m4z_1_,20,23,1,1 7m4z_1_,22,28,1,1 7m4z_1_,23,28,1,1 7m4z_1_,24,28,1,1 7m4z_1_,25,29,1,1 7m4z_1_,26,30,1,1 7m4z_1_,27,31,1,1 7m4z_1_,28,32,1,1 7m4z_1_,29,33,1,1 7m4z_1_,30,34,1,1 7m4z_1_,31,35,1,1 7m4z_1_,32,36,1,1 7m4z_1_,33,37,1,1 7m4z_1_,34,39,1,1 7m4z_1_,34,41,1,1 7m4z_1_,34,42,1,1 7m4z_1_,35,38,1,1 7m4z_1_,43,44,1,1