pair,contact1,contact2,flow1,flow2 1i8g_B_,1,34,1,1 1i8g_B_,2,35,1,1 1i8g_B_,5,21,1,1 1i8g_B_,5,22,1,1 1i8g_B_,7,9,1,1 1i8g_B_,7,20,1,1 1i8g_B_,8,9,1,1 1i8g_B_,8,17,1,1 1i8g_B_,9,18,1,1 1i8g_B_,9,22,1,1 1i8g_B_,11,15,1,1 1i8g_B_,11,16,1,1 1i8g_B_,19,28,1,1 1i8g_B_,21,25,1,1 1i8g_B_,21,26,1,1 1i8g_B_,28,30,1,1 1i8g_B_,29,30,1,1 1i8g_B_,31,33,1,1 1i8g_B_,31,36,1,1 1i8g_B_,31,39,1,1 1i8g_B_,32,34,1,1 1i8g_B_,35,39,1,1 1i8g_B_,36,39,1,1