pair,contact1,contact2,flow1,flow2 2d2c_D_,3,5,1,1 2d2c_D_,4,6,1,1 2d2c_D_,7,10,1,1 2d2c_D_,8,11,1,1 2d2c_D_,9,13,1,1 2d2c_D_,11,15,1,1 2d2c_D_,12,15,1,1 2d2c_D_,13,17,1,1 2d2c_D_,15,19,1,1 2d2c_D_,16,20,1,1 2d2c_D_,18,22,1,1 2d2c_D_,19,23,1,1 2d2c_D_,21,25,1,1 2d2c_D_,24,28,1,1 2d2c_D_,25,29,1,1 2d2c_D_,26,30,1,1 2d2c_D_,27,31,1,1 2d2c_D_,29,32,1,1 2d2c_D_,40,43,1,1 2d2c_D_,44,51,1,1 2d2c_D_,47,48,1,1 2d2c_D_,47,51,1,1 2d2c_D_,52,54,1,1 2d2c_D_,54,57,1,1 2d2c_D_,55,58,1,1 2d2c_D_,55,147,1,1 2d2c_D_,56,61,1,1 2d2c_D_,57,61,1,1 2d2c_D_,65,67,1,1 2d2c_D_,70,78,1,1 2d2c_D_,72,76,1,1 2d2c_D_,76,78,1,1 2d2c_D_,79,93,1,1 2d2c_D_,85,87,1,1 2d2c_D_,89,124,1,1 2d2c_D_,92,140,1,1 2d2c_D_,93,95,1,1 2d2c_D_,97,122,1,1 2d2c_D_,98,122,1,1 2d2c_D_,98,135,1,1 2d2c_D_,98,136,1,1 2d2c_D_,107,111,1,1 2d2c_D_,110,114,1,1 2d2c_D_,115,120,1,1 2d2c_D_,120,133,1,1 2d2c_D_,121,129,1,1 2d2c_D_,121,130,1,1 2d2c_D_,123,125,1,1 2d2c_D_,145,148,1,1 2d2c_D_,155,156,1,1 2d2c_D_,158,160,1,1