pair,contact1,contact2,flow1,flow2 2bsf_A_,1,3,1,1 2bsf_A_,4,6,1,1 2bsf_A_,4,7,1,1 2bsf_A_,6,9,1,1 2bsf_A_,13,16,1,1 2bsf_A_,15,26,1,1 2bsf_A_,17,24,1,1 2bsf_A_,17,26,1,1 2bsf_A_,19,22,1,1 2bsf_A_,28,30,1,1 2bsf_A_,28,31,1,1 2bsf_A_,28,32,1,1 2bsf_A_,28,75,1,1 2bsf_A_,29,42,1,1 2bsf_A_,29,43,1,1 2bsf_A_,33,39,1,1 2bsf_A_,33,40,1,1 2bsf_A_,34,36,1,1 2bsf_A_,35,37,1,1 2bsf_A_,39,40,1,1 2bsf_A_,46,72,1,1 2bsf_A_,46,109,1,1 2bsf_A_,48,70,1,1 2bsf_A_,50,68,1,1 2bsf_A_,51,104,1,1 2bsf_A_,52,66,1,1 2bsf_A_,52,99,1,1 2bsf_A_,53,102,1,1 2bsf_A_,54,64,1,1 2bsf_A_,55,97,1,1 2bsf_A_,55,102,1,1 2bsf_A_,56,62,1,1 2bsf_A_,57,95,1,1 2bsf_A_,57,97,1,1 2bsf_A_,58,95,1,1 2bsf_A_,59,90,1,1 2bsf_A_,60,62,1,1 2bsf_A_,60,88,1,1 2bsf_A_,62,63,1,1 2bsf_A_,62,88,1,1 2bsf_A_,65,84,1,1 2bsf_A_,67,82,1,1 2bsf_A_,69,80,1,1 2bsf_A_,70,72,1,1 2bsf_A_,71,78,1,1 2bsf_A_,72,77,1,1 2bsf_A_,73,76,1,1 2bsf_A_,73,78,1,1 2bsf_A_,75,176,1,1 2bsf_A_,76,78,1,1 2bsf_A_,76,175,1,1 2bsf_A_,77,112,1,1 2bsf_A_,77,174,1,1 2bsf_A_,79,172,1,1 2bsf_A_,81,170,1,1 2bsf_A_,83,168,1,1 2bsf_A_,86,88,1,1 2bsf_A_,86,164,1,1 2bsf_A_,87,165,1,1 2bsf_A_,89,163,1,1 2bsf_A_,91,92,1,1 2bsf_A_,91,157,1,1 2bsf_A_,92,157,1,1 2bsf_A_,94,155,1,1 2bsf_A_,96,153,1,1 2bsf_A_,97,152,1,1 2bsf_A_,98,151,1,1 2bsf_A_,99,101,1,1 2bsf_A_,99,102,1,1 2bsf_A_,100,103,1,1 2bsf_A_,100,149,1,1 2bsf_A_,109,112,1,1 2bsf_A_,110,113,1,1 2bsf_A_,111,114,1,1 2bsf_A_,112,176,1,1 2bsf_A_,115,120,1,1 2bsf_A_,116,119,1,1 2bsf_A_,116,120,1,1 2bsf_A_,116,175,1,1 2bsf_A_,118,121,1,1 2bsf_A_,119,122,1,1 2bsf_A_,124,143,1,1 2bsf_A_,125,172,1,1 2bsf_A_,126,141,1,1 2bsf_A_,127,171,1,1 2bsf_A_,128,139,1,1 2bsf_A_,129,169,1,1 2bsf_A_,130,137,1,1 2bsf_A_,131,166,1,1 2bsf_A_,132,135,1,1 2bsf_A_,132,157,1,1 2bsf_A_,132,160,1,1 2bsf_A_,140,141,1,1 2bsf_A_,142,154,1,1 2bsf_A_,144,152,1,1 2bsf_A_,146,150,1,1 2bsf_A_,147,150,1,1 2bsf_A_,157,159,1,1