pair,contact1,contact2,flow1,flow2 3cme_L_,2,5,1,1 3cme_L_,2,6,1,1 3cme_L_,3,6,1,1 3cme_L_,3,7,1,1 3cme_L_,4,7,1,1 3cme_L_,7,10,1,1 3cme_L_,10,12,1,1 3cme_L_,10,13,1,1 3cme_L_,12,15,1,1 3cme_L_,13,21,1,1 3cme_L_,15,20,1,1 3cme_L_,17,19,1,1 3cme_L_,17,20,1,1 3cme_L_,23,26,1,1 3cme_L_,24,27,1,1 3cme_L_,24,29,1,1 3cme_L_,25,28,1,1 3cme_L_,28,38,1,1 3cme_L_,34,37,1,1 3cme_L_,34,39,1,1 3cme_L_,35,44,1,1 3cme_L_,54,57,1,1 3cme_L_,60,99,1,1 3cme_L_,62,100,1,1 3cme_L_,62,102,1,1 3cme_L_,64,102,1,1 3cme_L_,64,104,1,1 3cme_L_,65,69,1,1 3cme_L_,66,70,1,1 3cme_L_,66,104,1,1 3cme_L_,67,71,1,1 3cme_L_,67,106,1,1 3cme_L_,68,72,1,1 3cme_L_,69,72,1,1 3cme_L_,70,110,1,1 3cme_L_,72,75,1,1 3cme_L_,72,76,1,1 3cme_L_,76,79,1,1 3cme_L_,80,85,1,1 3cme_L_,84,112,1,1 3cme_L_,84,114,1,1 3cme_L_,86,114,1,1 3cme_L_,86,116,1,1 3cme_L_,87,89,1,1 3cme_L_,87,90,1,1 3cme_L_,88,91,1,1 3cme_L_,88,92,1,1 3cme_L_,101,118,1,1 3cme_L_,103,119,1,1 3cme_L_,103,121,1,1 3cme_L_,105,127,1,1 3cme_L_,107,127,1,1 3cme_L_,108,110,1,1 3cme_L_,113,134,1,1 3cme_L_,115,136,1,1 3cme_L_,117,136,1,1 3cme_L_,117,138,1,1 3cme_L_,118,138,1,1 3cme_L_,120,144,1,1 3cme_L_,121,124,1,1 3cme_L_,121,125,1,1 3cme_L_,122,125,1,1 3cme_L_,122,126,1,1 3cme_L_,123,127,1,1 3cme_L_,124,128,1,1 3cme_L_,125,129,1,1 3cme_L_,126,130,1,1 3cme_L_,128,131,1,1 3cme_L_,129,133,1,1 3cme_L_,139,142,1,1 3cme_L_,141,143,1,1