pair,contact1,contact2,flow1,flow2 7dxh_z_,3,7,1,1 7dxh_z_,5,8,1,1 7dxh_z_,8,11,1,1 7dxh_z_,10,14,1,1 7dxh_z_,12,15,1,1 7dxh_z_,12,16,1,1 7dxh_z_,17,20,1,1 7dxh_z_,17,21,1,1 7dxh_z_,24,27,1,1 7dxh_z_,27,29,1,1 7dxh_z_,29,31,1,1 7dxh_z_,30,32,1,1 7dxh_z_,37,39,1,1 7dxh_z_,46,50,1,1 7dxh_z_,47,51,1,1 7dxh_z_,48,52,1,1 7dxh_z_,49,53,1,1 7dxh_z_,50,54,1,1 7dxh_z_,51,55,1,1