pair,contact1,contact2,flow1,flow2 4bbs_I_,4,13,1,1 4bbs_I_,6,10,1,1 4bbs_I_,6,11,1,1 4bbs_I_,7,8,1,1 4bbs_I_,9,30,1,1 4bbs_I_,11,30,1,1 4bbs_I_,14,27,1,1 4bbs_I_,16,25,1,1 4bbs_I_,18,20,1,1 4bbs_I_,18,21,1,1 4bbs_I_,18,23,1,1 4bbs_I_,23,36,1,1 4bbs_I_,24,37,1,1 4bbs_I_,26,35,1,1 4bbs_I_,28,30,1,1 4bbs_I_,28,33,1,1 4bbs_I_,33,35,1,1 4bbs_I_,39,41,1,1 4bbs_I_,44,46,1,1 4bbs_I_,49,89,1,1 4bbs_I_,53,88,1,1 4bbs_I_,56,58,1,1 4bbs_I_,60,63,1,1 4bbs_I_,62,69,1,1 4bbs_I_,64,66,1,1 4bbs_I_,67,69,1,1 4bbs_I_,68,84,1,1 4bbs_I_,70,82,1,1 4bbs_I_,72,82,1,1 4bbs_I_,73,78,1,1 4bbs_I_,74,78,1,1 4bbs_I_,74,79,1,1 4bbs_I_,79,81,1,1 4bbs_I_,79,104,1,1 4bbs_I_,81,102,1,1 4bbs_I_,81,103,1,1 4bbs_I_,83,101,1,1 4bbs_I_,85,99,1,1 4bbs_I_,86,90,1,1 4bbs_I_,91,93,1,1 4bbs_I_,91,94,1,1 4bbs_I_,98,110,1,1 4bbs_I_,98,111,1,1 4bbs_I_,100,109,1,1 4bbs_I_,102,107,1,1 4bbs_I_,110,112,1,1 4bbs_I_,112,114,1,1 4bbs_I_,112,115,1,1 4bbs_I_,114,116,1,1