pair,contact1,contact2,flow1,flow2 6spg_t_,2,4,1,1 6spg_t_,2,5,1,1 6spg_t_,4,8,1,1 6spg_t_,5,9,1,1 6spg_t_,6,10,1,1 6spg_t_,7,11,1,1 6spg_t_,9,12,1,1 6spg_t_,12,15,1,1 6spg_t_,12,16,1,1 6spg_t_,13,17,1,1 6spg_t_,15,19,1,1 6spg_t_,16,20,1,1 6spg_t_,20,23,1,1 6spg_t_,20,24,1,1 6spg_t_,21,25,1,1 6spg_t_,24,28,1,1 6spg_t_,27,30,1,1 6spg_t_,27,31,1,1 6spg_t_,28,32,1,1 6spg_t_,30,33,1,1 6spg_t_,30,34,1,1 6spg_t_,31,35,1,1 6spg_t_,33,36,1,1 6spg_t_,33,37,1,1 6spg_t_,34,37,1,1 6spg_t_,37,40,1,1 6spg_t_,43,47,1,1 6spg_t_,44,48,1,1 6spg_t_,45,49,1,1 6spg_t_,46,50,1,1 6spg_t_,52,56,1,1 6spg_t_,53,57,1,1 6spg_t_,54,58,1,1 6spg_t_,55,59,1,1 6spg_t_,57,60,1,1 6spg_t_,57,74,1,1 6spg_t_,60,63,1,1 6spg_t_,66,69,1,1 6spg_t_,66,70,1,1 6spg_t_,69,72,1,1 6spg_t_,69,73,1,1 6spg_t_,72,76,1,1 6spg_t_,73,77,1,1 6spg_t_,74,78,1,1 6spg_t_,75,78,1,1 6spg_t_,75,79,1,1 6spg_t_,77,80,1,1 6spg_t_,78,81,1,1 6spg_t_,78,82,1,1 6spg_t_,81,84,1,1