pair,contact1,contact2,flow1,flow2
7nhu_A_,1,4,1,1
7nhu_A_,1,5,1,1
7nhu_A_,2,6,1,1
7nhu_A_,3,7,1,1
7nhu_A_,3,8,1,1
7nhu_A_,4,9,1,1
7nhu_A_,11,12,1,1
7nhu_A_,12,15,1,1
7nhu_A_,12,16,1,1
7nhu_A_,13,17,1,1
7nhu_A_,15,18,1,1
7nhu_A_,16,19,1,1
7nhu_A_,17,20,1,1