pair,contact1,contact2,flow1,flow2 6zkf_x_,1,6,1,1 6zkf_x_,7,10,1,1 6zkf_x_,13,17,1,1 6zkf_x_,14,18,1,1 6zkf_x_,15,19,1,1 6zkf_x_,16,20,1,1 6zkf_x_,17,21,1,1 6zkf_x_,18,22,1,1 6zkf_x_,19,23,1,1 6zkf_x_,20,24,1,1 6zkf_x_,21,25,1,1 6zkf_x_,22,26,1,1 6zkf_x_,23,27,1,1 6zkf_x_,24,28,1,1 6zkf_x_,25,29,1,1 6zkf_x_,26,30,1,1 6zkf_x_,27,31,1,1 6zkf_x_,28,32,1,1 6zkf_x_,29,33,1,1 6zkf_x_,30,34,1,1 6zkf_x_,31,35,1,1 6zkf_x_,32,36,1,1 6zkf_x_,33,37,1,1 6zkf_x_,34,38,1,1 6zkf_x_,35,39,1,1 6zkf_x_,36,40,1,1 6zkf_x_,37,41,1,1 6zkf_x_,38,42,1,1 6zkf_x_,39,43,1,1 6zkf_x_,40,44,1,1 6zkf_x_,41,44,1,1 6zkf_x_,41,45,1,1 6zkf_x_,42,46,1,1 6zkf_x_,43,48,1,1