pair,contact1,contact2,flow1,flow2
3r1r_D_,4,6,1,1
3r1r_D_,4,7,1,1
3r1r_D_,5,9,1,1
3r1r_D_,6,9,1,1
3r1r_D_,6,10,1,1
3r1r_D_,7,10,1,1
3r1r_D_,8,11,1,1