pair,contact1,contact2,flow1,flow2 4wf1_BH_,1,21,1,1 4wf1_BH_,2,20,1,1 4wf1_BH_,4,37,1,1 4wf1_BH_,5,17,1,1 4wf1_BH_,6,35,1,1 4wf1_BH_,7,8,1,1 4wf1_BH_,9,13,1,1 4wf1_BH_,10,12,1,1 4wf1_BH_,10,13,1,1 4wf1_BH_,14,16,1,1 4wf1_BH_,16,51,1,1 4wf1_BH_,22,25,1,1 4wf1_BH_,22,26,1,1 4wf1_BH_,23,27,1,1 4wf1_BH_,25,30,1,1 4wf1_BH_,26,31,1,1 4wf1_BH_,29,33,1,1 4wf1_BH_,30,35,1,1 4wf1_BH_,40,42,1,1 4wf1_BH_,40,43,1,1 4wf1_BH_,41,45,1,1 4wf1_BH_,42,46,1,1 4wf1_BH_,43,47,1,1 4wf1_BH_,45,48,1,1 4wf1_BH_,45,49,1,1 4wf1_BH_,48,51,1,1 4wf1_BH_,49,53,1,1 4wf1_BH_,53,57,1,1 4wf1_BH_,54,58,1,1 4wf1_BH_,61,64,1,1 4wf1_BH_,61,65,1,1 4wf1_BH_,62,66,1,1 4wf1_BH_,64,68,1,1 4wf1_BH_,65,66,1,1 4wf1_BH_,66,69,1,1 4wf1_BH_,68,71,1,1 4wf1_BH_,69,73,1,1 4wf1_BH_,77,143,1,1 4wf1_BH_,77,145,1,1 4wf1_BH_,78,145,1,1 4wf1_BH_,79,145,1,1 4wf1_BH_,80,82,1,1 4wf1_BH_,80,145,1,1 4wf1_BH_,85,89,1,1 4wf1_BH_,95,98,1,1 4wf1_BH_,95,99,1,1 4wf1_BH_,98,102,1,1 4wf1_BH_,100,104,1,1 4wf1_BH_,101,104,1,1 4wf1_BH_,104,106,1,1 4wf1_BH_,111,114,1,1 4wf1_BH_,114,133,1,1 4wf1_BH_,116,131,1,1 4wf1_BH_,119,123,1,1 4wf1_BH_,124,128,1,1 4wf1_BH_,126,146,1,1 4wf1_BH_,128,144,1,1 4wf1_BH_,132,140,1,1 4wf1_BH_,135,138,1,1 4wf1_BH_,143,145,1,1