pair,contact1,contact2,flow1,flow2
7pku_B_,1,3,1,1
7pku_B_,11,23,1,1
7pku_B_,19,21,1,1
7pku_B_,30,34,1,1
7pku_B_,31,35,1,1
7pku_B_,32,36,1,1
7pku_B_,33,37,1,1
7pku_B_,34,38,1,1
7pku_B_,34,39,1,1
7pku_B_,35,39,1,1
7pku_B_,37,41,1,1
7pku_B_,46,48,1,1
7pku_B_,63,67,1,1
7pku_B_,71,73,1,1