x1 = C3
x2 = C3b
x3 = C3bB_closed
x4 = C3bB_open
x5 = C3bBb
x6 = C3bBbH
x7 = Bb
x8 = Factor_H
x9 = Factor_B
x10 = C3bH
x11 = Factor_I
x12 = iC3b
x13 = Factor_D