pair,contact1,contact2,flow1,flow2 6pst_N_,1,5,1,1 6pst_N_,4,8,1,1 6pst_N_,5,9,1,1 6pst_N_,6,10,1,1 6pst_N_,7,11,1,1 6pst_N_,8,12,1,1 6pst_N_,9,13,1,1 6pst_N_,10,14,1,1 6pst_N_,11,15,1,1 6pst_N_,12,15,1,1 6pst_N_,12,16,1,1 6pst_N_,13,17,1,1 6pst_N_,14,18,1,1 6pst_N_,15,19,1,1 6pst_N_,16,20,1,1 6pst_N_,17,21,1,1 6pst_N_,18,22,1,1 6pst_N_,19,23,1,1 6pst_N_,20,24,1,1 6pst_N_,21,25,1,1 6pst_N_,23,26,1,1 6pst_N_,31,33,1,1 6pst_N_,36,41,1,1 6pst_N_,37,55,1,1 6pst_N_,43,48,1,1 6pst_N_,44,47,1,1 6pst_N_,44,48,1,1 6pst_N_,45,49,1,1 6pst_N_,46,50,1,1 6pst_N_,47,51,1,1 6pst_N_,47,56,1,1 6pst_N_,57,61,1,1 6pst_N_,58,62,1,1 6pst_N_,59,63,1,1 6pst_N_,60,64,1,1 6pst_N_,61,65,1,1 6pst_N_,62,66,1,1 6pst_N_,63,67,1,1 6pst_N_,64,68,1,1 6pst_N_,65,69,1,1 6pst_N_,66,70,1,1