Response to question N-1-Black hole number 123

It has been suggested in one of the comments that zero should not be counted either as odd or even.It is not correct to leave out zero without considering it as odd or even.Taking the analogy of 1,3,5,7 and 9 counted as odd and 2,4,6 and 8 counted as even,it would be reasonable to count zero under the 'evens' category.In that case the number mentioned 303 will lead to the same blackhole number 123,like 323