pair,contact1,contact2,flow1,flow2 6h68_N_,4,7,1,1 6h68_N_,15,16,1,1 6h68_N_,23,25,1,1 6h68_N_,25,102,1,1 6h68_N_,31,112,1,1 6h68_N_,33,113,1,1 6h68_N_,33,115,1,1 6h68_N_,41,42,1,1 6h68_N_,48,50,1,1 6h68_N_,55,57,1,1 6h68_N_,56,67,1,1 6h68_N_,58,65,1,1 6h68_N_,59,64,1,1 6h68_N_,60,63,1,1 6h68_N_,61,63,1,1 6h68_N_,64,120,1,1 6h68_N_,66,118,1,1 6h68_N_,68,116,1,1 6h68_N_,70,75,1,1 6h68_N_,70,114,1,1 6h68_N_,71,76,1,1 6h68_N_,72,75,1,1 6h68_N_,72,76,1,1 6h68_N_,74,111,1,1 6h68_N_,76,110,1,1 6h68_N_,83,85,1,1 6h68_N_,83,109,1,1 6h68_N_,87,100,1,1 6h68_N_,89,98,1,1 6h68_N_,91,95,1,1 6h68_N_,101,103,1,1 6h68_N_,128,132,1,1 6h68_N_,145,147,1,1 6h68_N_,154,155,1,1 6h68_N_,155,158,1,1