Excel column names are in the following format:
A, B, ..., Z, AA, ..., AZ, BA, ..., ZZ, AAA, AAB, ...
Write a function that returns the column number from the row name.
column("A") ➞ 1 column("Z") ➞ 26 column("AA") ➞ 27 column("BA") ➞ 53
N/A