The 12 ball number Abcdefghijkl is grouped into ABCD, EFGH, IJKL. ABCD and EFGH are commensurate:
1. If ABCD = EFGH, there is an abnormal ball, ABC and IJK in IJKL:
1.1 If AB = IJ, there is an exception in KL.
1.2 If AB> Ij, there is a biased ball in IJ, and there is a small ball.
2. If ABCD> EFGH, AIJK and EBCD are commensurate:
2.1 If Aijk = EBCD, there is a light ball in the FGH.
2.2 If Aijk> EBCD, there is an exceptional ball.
2.3 If Aijk
3. If Abcd
