pair,contact1,contact2,flow1,flow2 2z31_D_,1,4,1,1 2z31_D_,7,32,1,1 2z31_D_,9,11,1,1 2z31_D_,9,30,1,1 2z31_D_,9,32,1,1 2z31_D_,11,28,1,1 2z31_D_,13,26,1,1 2z31_D_,15,24,1,1 2z31_D_,17,22,1,1 2z31_D_,18,21,1,1 2z31_D_,20,81,1,1 2z31_D_,24,40,1,1 2z31_D_,25,41,1,1 2z31_D_,25,71,1,1 2z31_D_,27,39,1,1 2z31_D_,28,35,1,1 2z31_D_,29,36,1,1 2z31_D_,29,37,1,1 2z31_D_,31,34,1,1 2z31_D_,34,50,1,1 2z31_D_,35,38,1,1 2z31_D_,36,49,1,1 2z31_D_,38,47,1,1 2z31_D_,40,42,1,1 2z31_D_,40,43,1,1 2z31_D_,40,44,1,1 2z31_D_,44,69,1,1 2z31_D_,45,47,1,1 2z31_D_,46,61,1,1 2z31_D_,46,68,1,1 2z31_D_,50,52,1,1 2z31_D_,51,54,1,1 2z31_D_,53,57,1,1 2z31_D_,56,60,1,1 2z31_D_,57,61,1,1 2z31_D_,58,62,1,1 2z31_D_,59,63,1,1 2z31_D_,63,67,1,1 2z31_D_,64,68,1,1 2z31_D_,65,69,1,1 2z31_D_,66,70,1,1 2z31_D_,68,71,1,1 2z31_D_,69,72,1,1 2z31_D_,70,73,1,1 2z31_D_,70,74,1,1 2z31_D_,71,75,1,1 2z31_D_,71,76,1,1 2z31_D_,72,77,1,1 2z31_D_,73,77,1,1 2z31_D_,73,78,1,1 2z31_D_,75,79,1,1 2z31_D_,76,80,1,1 2z31_D_,77,81,1,1 2z31_D_,78,82,1,1 2z31_D_,79,82,1,1 2z31_D_,79,83,1,1 2z31_D_,79,84,1,1 2z31_D_,80,85,1,1 2z31_D_,83,87,1,1 2z31_D_,84,87,1,1 2z31_D_,84,88,1,1 2z31_D_,84,89,1,1 2z31_D_,87,88,1,1 2z31_D_,88,91,1,1 2z31_D_,91,151,1,1 2z31_D_,93,121,1,1 2z31_D_,94,177,1,1 2z31_D_,96,118,1,1 2z31_D_,96,119,1,1 2z31_D_,98,115,1,1 2z31_D_,98,116,1,1 2z31_D_,100,114,1,1 2z31_D_,102,112,1,1 2z31_D_,108,163,1,1 2z31_D_,108,164,1,1 2z31_D_,111,161,1,1 2z31_D_,113,159,1,1 2z31_D_,115,157,1,1 2z31_D_,117,155,1,1 2z31_D_,120,153,1,1 2z31_D_,126,174,1,1 2z31_D_,128,171,1,1 2z31_D_,128,172,1,1 2z31_D_,128,174,1,1 2z31_D_,129,136,1,1 2z31_D_,129,157,1,1 2z31_D_,130,170,1,1 2z31_D_,131,134,1,1 2z31_D_,132,168,1,1 2z31_D_,139,160,1,1 2z31_D_,141,158,1,1 2z31_D_,143,156,1,1 2z31_D_,146,154,1,1 2z31_D_,148,152,1,1 2z31_D_,152,153,1,1 2z31_D_,162,169,1,1 2z31_D_,164,167,1,1 2z31_D_,167,169,1,1 2z31_D_,167,188,1,1 2z31_D_,169,186,1,1 2z31_D_,171,184,1,1 2z31_D_,173,182,1,1 2z31_D_,175,178,1,1