pair,contact1,contact2,flow1,flow2
4tnk_L_,4,6,1,1
4tnk_L_,13,16,1,1
4tnk_L_,13,17,1,1
4tnk_L_,14,18,1,1
4tnk_L_,15,19,1,1
4tnk_L_,16,20,1,1
4tnk_L_,17,21,1,1
4tnk_L_,18,22,1,1
4tnk_L_,19,23,1,1
4tnk_L_,20,24,1,1
4tnk_L_,21,25,1,1
4tnk_L_,22,26,1,1
4tnk_L_,23,27,1,1
4tnk_L_,24,28,1,1
4tnk_L_,25,29,1,1
4tnk_L_,27,30,1,1
4tnk_L_,27,31,1,1
4tnk_L_,28,32,1,1
4tnk_L_,31,35,1,1
4tnk_L_,32,36,1,1
4tnk_L_,33,37,1,1