pair,contact1,contact2,flow1,flow2 4tnk_H_,4,7,1,1 4tnk_H_,4,8,1,1 4tnk_H_,5,9,1,1 4tnk_H_,6,10,1,1 4tnk_H_,8,11,1,1 4tnk_H_,11,14,1,1 4tnk_H_,12,15,1,1 4tnk_H_,22,25,1,1 4tnk_H_,24,27,1,1 4tnk_H_,26,30,1,1 4tnk_H_,27,31,1,1 4tnk_H_,29,32,1,1 4tnk_H_,30,34,1,1 4tnk_H_,31,35,1,1 4tnk_H_,32,36,1,1 4tnk_H_,33,37,1,1 4tnk_H_,34,38,1,1 4tnk_H_,35,39,1,1 4tnk_H_,36,40,1,1 4tnk_H_,37,41,1,1 4tnk_H_,38,42,1,1 4tnk_H_,39,43,1,1 4tnk_H_,40,43,1,1 4tnk_H_,40,44,1,1 4tnk_H_,41,45,1,1 4tnk_H_,42,46,1,1 4tnk_H_,43,47,1,1 4tnk_H_,44,48,1,1 4tnk_H_,45,49,1,1 4tnk_H_,46,51,1,1 4tnk_H_,46,52,1,1 4tnk_H_,47,50,1,1 4tnk_H_,49,51,1,1 4tnk_H_,54,57,1,1 4tnk_H_,58,60,1,1