pair,contact1,contact2,flow1,flow2 2n1t_C_,1,4,1,1 2n1t_C_,2,6,1,1 2n1t_C_,2,7,1,1 2n1t_C_,5,8,1,1 2n1t_C_,5,9,1,1 2n1t_C_,7,11,1,1 2n1t_C_,8,12,1,1 2n1t_C_,9,13,1,1 2n1t_C_,10,13,1,1 2n1t_C_,10,14,1,1 2n1t_C_,11,15,1,1 2n1t_C_,12,16,1,1 2n1t_C_,13,17,1,1 2n1t_C_,14,18,1,1 2n1t_C_,15,19,1,1 2n1t_C_,16,20,1,1 2n1t_C_,17,21,1,1 2n1t_C_,18,22,1,1 2n1t_C_,19,23,1,1 2n1t_C_,20,24,1,1 2n1t_C_,21,25,1,1 2n1t_C_,22,26,1,1 2n1t_C_,23,27,1,1 2n1t_C_,24,28,1,1 2n1t_C_,25,29,1,1 2n1t_C_,26,30,1,1 2n1t_C_,27,31,1,1 2n1t_C_,28,32,1,1 2n1t_C_,29,33,1,1 2n1t_C_,30,34,1,1 2n1t_C_,31,35,1,1 2n1t_C_,32,36,1,1 2n1t_C_,33,37,1,1 2n1t_C_,34,38,1,1 2n1t_C_,35,39,1,1 2n1t_C_,36,40,1,1 2n1t_C_,37,41,1,1 2n1t_C_,38,42,1,1 2n1t_C_,39,43,1,1 2n1t_C_,40,44,1,1 2n1t_C_,41,45,1,1 2n1t_C_,42,46,1,1 2n1t_C_,43,47,1,1 2n1t_C_,44,48,1,1 2n1t_C_,45,49,1,1 2n1t_C_,46,50,1,1 2n1t_C_,47,51,1,1 2n1t_C_,48,52,1,1 2n1t_C_,50,54,1,1 2n1t_C_,51,55,1,1 2n1t_C_,52,56,1,1 2n1t_C_,53,56,1,1 2n1t_C_,53,57,1,1 2n1t_C_,54,58,1,1 2n1t_C_,55,59,1,1 2n1t_C_,56,60,1,1 2n1t_C_,57,61,1,1 2n1t_C_,58,62,1,1 2n1t_C_,59,63,1,1 2n1t_C_,60,64,1,1 2n1t_C_,61,65,1,1 2n1t_C_,62,66,1,1 2n1t_C_,63,67,1,1 2n1t_C_,64,68,1,1 2n1t_C_,65,69,1,1 2n1t_C_,67,70,1,1 2n1t_C_,67,71,1,1 2n1t_C_,68,72,1,1 2n1t_C_,69,73,1,1 2n1t_C_,70,74,1,1 2n1t_C_,71,75,1,1 2n1t_C_,74,77,1,1 2n1t_C_,75,77,1,1