pair,contact1,contact2,flow1,flow2 4c2m_1_,2,33,1,1 4c2m_1_,3,12,1,1 4c2m_1_,4,31,1,1 4c2m_1_,5,10,1,1 4c2m_1_,6,29,1,1 4c2m_1_,10,22,1,1 4c2m_1_,10,24,1,1 4c2m_1_,13,23,1,1 4c2m_1_,22,26,1,1 4c2m_1_,22,27,1,1 4c2m_1_,26,28,1,1 4c2m_1_,42,44,1,1