pair,contact1,contact2,flow1,flow2 8f8m_B_,1,4,1,1 8f8m_B_,2,6,1,1 8f8m_B_,3,7,1,1 8f8m_B_,4,8,1,1 8f8m_B_,5,9,1,1 8f8m_B_,6,9,1,1 8f8m_B_,6,10,1,1 8f8m_B_,7,10,1,1