pair,contact1,contact2,flow1,flow2 4thn_L_,8,17,1,1 4thn_L_,12,15,1,1 4thn_L_,12,16,1,1 4thn_L_,12,17,1,1 4thn_L_,12,22,1,1 4thn_L_,15,18,1,1 4thn_L_,15,20,1,1 4thn_L_,16,19,1,1