pair,contact1,contact2,flow1,flow2
3an2_D_,2,27,1,1
3an2_D_,3,6,1,1
3an2_D_,3,7,1,1
3an2_D_,6,10,1,1
3an2_D_,7,11,1,1
3an2_D_,8,12,1,1
3an2_D_,10,13,1,1
3an2_D_,10,14,1,1
3an2_D_,12,16,1,1
3an2_D_,12,18,1,1
3an2_D_,14,15,1,1
3an2_D_,15,18,1,1
3an2_D_,17,18,1,1
3an2_D_,21,24,1,1
3an2_D_,25,28,1,1
3an2_D_,26,29,1,1
3an2_D_,27,31,1,1
3an2_D_,28,32,1,1
3an2_D_,29,33,1,1
3an2_D_,30,33,1,1
3an2_D_,30,34,1,1
3an2_D_,31,35,1,1
3an2_D_,32,36,1,1
3an2_D_,33,37,1,1
3an2_D_,34,38,1,1
3an2_D_,35,39,1,1
3an2_D_,36,40,1,1
3an2_D_,38,42,1,1
3an2_D_,39,42,1,1
3an2_D_,39,43,1,1
3an2_D_,41,44,1,1
3an2_D_,41,45,1,1
3an2_D_,42,46,1,1
3an2_D_,43,47,1,1
3an2_D_,44,48,1,1
3an2_D_,54,57,1,1
3an2_D_,56,60,1,1
3an2_D_,57,60,1,1
3an2_D_,57,61,1,1
3an2_D_,59,62,1,1
3an2_D_,59,63,1,1
3an2_D_,60,64,1,1
3an2_D_,62,65,1,1
3an2_D_,62,66,1,1
3an2_D_,67,70,1,1
3an2_D_,68,71,1,1
3an2_D_,68,72,1,1
3an2_D_,71,75,1,1
3an2_D_,72,73,1,1
3an2_D_,74,77,1,1
3an2_D_,75,79,1,1
3an2_D_,78,82,1,1
3an2_D_,80,83,1,1
3an2_D_,82,85,1,1
3an2_D_,82,86,1,1
3an2_D_,83,86,1,1
3an2_D_,83,87,1,1