pair,contact1,contact2,flow1,flow2
4rt4_E_,2,5,1,1
4rt4_E_,3,6,1,1
4rt4_E_,3,7,1,1
4rt4_E_,4,8,1,1
4rt4_E_,5,9,1,1
4rt4_E_,6,10,1,1
4rt4_E_,7,11,1,1
4rt4_E_,8,12,1,1
4rt4_E_,9,13,1,1
4rt4_E_,10,14,1,1
4rt4_E_,11,15,1,1
4rt4_E_,12,16,1,1
4rt4_E_,13,17,1,1
4rt4_E_,14,18,1,1
4rt4_E_,15,19,1,1
4rt4_E_,17,20,1,1
4rt4_E_,17,21,1,1
4rt4_E_,18,21,1,1