pair,contact1,contact2,flow1,flow2 7dxa_m_,4,8,1,1 7dxa_m_,5,9,1,1 7dxa_m_,6,10,1,1 7dxa_m_,7,11,1,1 7dxa_m_,8,12,1,1 7dxa_m_,9,13,1,1 7dxa_m_,10,13,1,1 7dxa_m_,10,14,1,1 7dxa_m_,13,17,1,1 7dxa_m_,16,20,1,1 7dxa_m_,17,21,1,1 7dxa_m_,18,22,1,1 7dxa_m_,19,23,1,1 7dxa_m_,21,24,1,1 7dxa_m_,21,25,1,1 7dxa_m_,22,26,1,1 7dxa_m_,24,27,1,1 7dxa_m_,25,28,1,1 7dxa_m_,25,29,1,1 7dxa_m_,26,29,1,1 7dxa_m_,27,30,1,1