pair,contact1,contact2,flow1,flow2 3rk2_D_,1,5,1,1 3rk2_D_,2,6,1,1 3rk2_D_,3,7,1,1 3rk2_D_,4,8,1,1 3rk2_D_,5,9,1,1 3rk2_D_,6,10,1,1 3rk2_D_,7,11,1,1 3rk2_D_,8,12,1,1 3rk2_D_,9,13,1,1 3rk2_D_,10,14,1,1 3rk2_D_,11,15,1,1 3rk2_D_,12,16,1,1 3rk2_D_,13,17,1,1 3rk2_D_,14,18,1,1 3rk2_D_,15,19,1,1 3rk2_D_,16,20,1,1 3rk2_D_,17,20,1,1 3rk2_D_,18,21,1,1 3rk2_D_,18,22,1,1 3rk2_D_,19,23,1,1 3rk2_D_,20,24,1,1 3rk2_D_,21,25,1,1 3rk2_D_,22,26,1,1 3rk2_D_,23,27,1,1 3rk2_D_,24,28,1,1 3rk2_D_,25,29,1,1 3rk2_D_,26,30,1,1 3rk2_D_,27,31,1,1 3rk2_D_,28,32,1,1 3rk2_D_,29,33,1,1 3rk2_D_,30,34,1,1 3rk2_D_,31,35,1,1 3rk2_D_,32,36,1,1 3rk2_D_,33,37,1,1 3rk2_D_,34,38,1,1 3rk2_D_,35,39,1,1 3rk2_D_,36,40,1,1 3rk2_D_,37,41,1,1 3rk2_D_,38,42,1,1 3rk2_D_,39,43,1,1 3rk2_D_,40,44,1,1 3rk2_D_,41,45,1,1 3rk2_D_,42,46,1,1 3rk2_D_,43,47,1,1 3rk2_D_,44,48,1,1 3rk2_D_,45,49,1,1 3rk2_D_,46,50,1,1 3rk2_D_,47,51,1,1 3rk2_D_,48,52,1,1 3rk2_D_,49,53,1,1 3rk2_D_,50,54,1,1 3rk2_D_,51,55,1,1 3rk2_D_,52,56,1,1 3rk2_D_,53,57,1,1 3rk2_D_,54,58,1,1 3rk2_D_,55,59,1,1 3rk2_D_,56,60,1,1 3rk2_D_,57,61,1,1 3rk2_D_,58,62,1,1 3rk2_D_,59,63,1,1 3rk2_D_,61,64,1,1