pair,contact1,contact2,flow1,flow2
1c8m_4_,1,15,1,1
1c8m_4_,2,4,1,1
1c8m_4_,3,5,1,1
1c8m_4_,13,27,1,1
1c8m_4_,19,22,1,1
1c8m_4_,20,23,1,1