pair,contact1,contact2,flow1,flow2 6wdd_S_,2,5,1,1 6wdd_S_,2,6,1,1 6wdd_S_,3,7,1,1 6wdd_S_,4,8,1,1 6wdd_S_,5,9,1,1 6wdd_S_,6,10,1,1 6wdd_S_,7,11,1,1 6wdd_S_,9,13,1,1 6wdd_S_,9,60,1,1 6wdd_S_,10,14,1,1 6wdd_S_,11,15,1,1 6wdd_S_,14,17,1,1 6wdd_S_,15,18,1,1 6wdd_S_,19,22,1,1 6wdd_S_,19,23,1,1 6wdd_S_,21,22,1,1 6wdd_S_,24,27,1,1 6wdd_S_,25,28,1,1 6wdd_S_,37,41,1,1 6wdd_S_,38,42,1,1 6wdd_S_,41,45,1,1 6wdd_S_,43,46,1,1 6wdd_S_,45,49,1,1 6wdd_S_,46,49,1,1 6wdd_S_,46,50,1,1 6wdd_S_,53,54,1,1 6wdd_S_,53,58,1,1 6wdd_S_,55,58,1,1 6wdd_S_,55,59,1,1 6wdd_S_,60,70,1,1 6wdd_S_,62,67,1,1 6wdd_S_,63,66,1,1 6wdd_S_,63,68,1,1 6wdd_S_,64,77,1,1 6wdd_S_,66,68,1,1 6wdd_S_,71,79,1,1 6wdd_S_,71,80,1,1 6wdd_S_,73,76,1,1 6wdd_S_,73,77,1,1 6wdd_S_,79,83,1,1 6wdd_S_,80,84,1,1 6wdd_S_,81,84,1,1 6wdd_S_,81,85,1,1 6wdd_S_,83,86,1,1 6wdd_S_,83,87,1,1 6wdd_S_,84,88,1,1 6wdd_S_,85,89,1,1 6wdd_S_,86,90,1,1 6wdd_S_,86,91,1,1 6wdd_S_,87,90,1,1 6wdd_S_,92,95,1,1 6wdd_S_,96,97,1,1