pair,contact1,contact2,flow1,flow2
8ir1_z_,3,5,1,1
8ir1_z_,4,13,1,1
8ir1_z_,6,10,1,1
8ir1_z_,7,11,1,1
8ir1_z_,8,12,1,1
8ir1_z_,9,13,1,1
8ir1_z_,10,14,1,1
8ir1_z_,11,15,1,1
8ir1_z_,12,16,1,1
8ir1_z_,13,17,1,1
8ir1_z_,14,18,1,1
8ir1_z_,16,20,1,1
8ir1_z_,17,21,1,1
8ir1_z_,21,25,1,1
8ir1_z_,22,26,1,1
8ir1_z_,24,28,1,1
8ir1_z_,26,30,1,1
8ir1_z_,27,31,1,1
8ir1_z_,28,32,1,1
8ir1_z_,29,33,1,1
8ir1_z_,30,34,1,1
8ir1_z_,35,37,1,1
8ir1_z_,36,38,1,1
8ir1_z_,36,40,1,1
8ir1_z_,42,43,1,1
8ir1_z_,42,45,1,1
8ir1_z_,42,46,1,1
8ir1_z_,44,46,1,1
8ir1_z_,52,55,1,1
8ir1_z_,54,57,1,1
8ir1_z_,54,58,1,1
8ir1_z_,55,59,1,1
8ir1_z_,56,60,1,1
8ir1_z_,59,62,1,1
8ir1_z_,64,67,1,1