pair,contact1,contact2,flow1,flow2
8wid_x_,1,4,1,1
8wid_x_,1,5,1,1
8wid_x_,2,6,1,1
8wid_x_,3,7,1,1
8wid_x_,4,8,1,1
8wid_x_,5,9,1,1
8wid_x_,6,10,1,1
8wid_x_,6,11,1,1