pair,contact1,contact2,flow1,flow2 6t7a_B_,10,13,1,1 6t7a_B_,15,18,1,1 6t7a_B_,15,19,1,1 6t7a_B_,16,19,1,1 6t7a_B_,16,20,1,1 6t7a_B_,19,23,1,1 6t7a_B_,20,24,1,1 6t7a_B_,21,25,1,1 6t7a_B_,23,28,1,1 6t7a_B_,35,39,1,1 6t7a_B_,36,39,1,1 6t7a_B_,36,40,1,1 6t7a_B_,37,40,1,1 6t7a_B_,37,41,1,1 6t7a_B_,38,42,1,1 6t7a_B_,39,43,1,1 6t7a_B_,40,44,1,1 6t7a_B_,41,45,1,1 6t7a_B_,42,46,1,1 6t7a_B_,43,47,1,1 6t7a_B_,44,48,1,1 6t7a_B_,45,49,1,1 6t7a_B_,46,50,1,1 6t7a_B_,47,51,1,1 6t7a_B_,48,52,1,1 6t7a_B_,49,53,1,1 6t7a_B_,50,54,1,1 6t7a_B_,51,55,1,1 6t7a_B_,52,56,1,1 6t7a_B_,53,56,1,1 6t7a_B_,53,57,1,1 6t7a_B_,53,77,1,1 6t7a_B_,54,58,1,1 6t7a_B_,55,59,1,1 6t7a_B_,56,60,1,1 6t7a_B_,58,63,1,1 6t7a_B_,58,65,1,1 6t7a_B_,63,70,1,1 6t7a_B_,67,70,1,1 6t7a_B_,68,72,1,1 6t7a_B_,69,73,1,1 6t7a_B_,70,74,1,1 6t7a_B_,71,75,1,1 6t7a_B_,72,76,1,1 6t7a_B_,73,77,1,1 6t7a_B_,74,78,1,1 6t7a_B_,75,80,1,1 6t7a_B_,76,79,1,1