pair,contact1,contact2,flow1,flow2
3bwu_D_,3,22,1,1
3bwu_D_,4,6,1,1
3bwu_D_,4,7,1,1
3bwu_D_,5,8,1,1
3bwu_D_,6,9,1,1
3bwu_D_,8,11,1,1
3bwu_D_,11,13,1,1
3bwu_D_,11,14,1,1
3bwu_D_,13,17,1,1
3bwu_D_,14,18,1,1
3bwu_D_,15,19,1,1
3bwu_D_,16,20,1,1
3bwu_D_,17,20,1,1
3bwu_D_,17,21,1,1
3bwu_D_,18,22,1,1
3bwu_D_,19,23,1,1
3bwu_D_,20,23,1,1
3bwu_D_,20,25,1,1
3bwu_D_,21,24,1,1
3bwu_D_,25,27,1,1
3bwu_D_,28,32,1,1
3bwu_D_,30,50,1,1
3bwu_D_,31,49,1,1
3bwu_D_,32,48,1,1
3bwu_D_,33,47,1,1
3bwu_D_,34,46,1,1
3bwu_D_,35,45,1,1
3bwu_D_,35,108,1,1
3bwu_D_,35,110,1,1
3bwu_D_,36,43,1,1
3bwu_D_,36,44,1,1
3bwu_D_,37,110,1,1
3bwu_D_,37,112,1,1
3bwu_D_,38,41,1,1
3bwu_D_,39,112,1,1
3bwu_D_,39,114,1,1
3bwu_D_,42,45,1,1
3bwu_D_,46,47,1,1
3bwu_D_,49,62,1,1
3bwu_D_,51,60,1,1
3bwu_D_,53,58,1,1
3bwu_D_,55,57,1,1
3bwu_D_,55,58,1,1
3bwu_D_,55,59,1,1
3bwu_D_,57,103,1,1
3bwu_D_,63,90,1,1
3bwu_D_,64,67,1,1
3bwu_D_,64,68,1,1
3bwu_D_,65,69,1,1
3bwu_D_,65,81,1,1
3bwu_D_,65,84,1,1
3bwu_D_,66,70,1,1
3bwu_D_,67,70,1,1
3bwu_D_,68,71,1,1
3bwu_D_,68,73,1,1
3bwu_D_,69,72,1,1
3bwu_D_,72,120,1,1
3bwu_D_,74,77,1,1
3bwu_D_,74,118,1,1
3bwu_D_,75,78,1,1
3bwu_D_,78,81,1,1
3bwu_D_,80,83,1,1
3bwu_D_,81,84,1,1
3bwu_D_,85,88,1,1
3bwu_D_,90,92,1,1
3bwu_D_,91,94,1,1
3bwu_D_,91,95,1,1
3bwu_D_,92,96,1,1
3bwu_D_,96,99,1,1
3bwu_D_,100,113,1,1
3bwu_D_,102,111,1,1
3bwu_D_,104,107,1,1
3bwu_D_,104,109,1,1
3bwu_D_,105,108,1,1
3bwu_D_,109,111,1,1
3bwu_D_,115,118,1,1
3bwu_D_,116,119,1,1
3bwu_D_,116,121,1,1