1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
0.000000 0.500000 0.500000
0.500000 0.000000 0.500000
0.500000 0.500000 0.000000
0.000000 0.000000 0.000000 a_A=0.500000,a_B=0.250000,a_C=0.250000