pair,contact1,contact2,flow1,flow2
4dmd_A_,1,5,1,1
4dmd_A_,2,6,1,1
4dmd_A_,3,7,1,1
4dmd_A_,4,8,1,1
4dmd_A_,5,9,1,1
4dmd_A_,6,10,1,1
4dmd_A_,7,11,1,1
4dmd_A_,8,12,1,1
4dmd_A_,9,13,1,1
4dmd_A_,10,14,1,1
4dmd_A_,11,14,1,1
4dmd_A_,11,15,1,1
4dmd_A_,12,16,1,1
4dmd_A_,13,17,1,1
4dmd_A_,14,18,1,1
4dmd_A_,15,19,1,1
4dmd_A_,16,20,1,1
4dmd_A_,17,21,1,1
4dmd_A_,18,22,1,1
4dmd_A_,19,23,1,1
4dmd_A_,20,24,1,1
4dmd_A_,21,25,1,1
4dmd_A_,22,25,1,1
4dmd_A_,22,26,1,1
4dmd_A_,23,27,1,1
4dmd_A_,24,28,1,1
4dmd_A_,25,29,1,1
4dmd_A_,27,30,1,1