pair,contact1,contact2,flow1,flow2
6php_A_,1,3,1,1
6php_A_,1,4,1,1
6php_A_,2,6,1,1
6php_A_,3,7,1,1
6php_A_,4,8,1,1
6php_A_,5,9,1,1
6php_A_,6,10,1,1
6php_A_,7,11,1,1
6php_A_,8,11,1,1
6php_A_,8,12,1,1
6php_A_,9,13,1,1
6php_A_,10,14,1,1
6php_A_,11,15,1,1
6php_A_,12,16,1,1
6php_A_,14,17,1,1
6php_A_,15,18,1,1
6php_A_,16,19,1,1
6php_A_,17,21,1,1
6php_A_,18,21,1,1
6php_A_,19,22,1,1