"""
Source : https://oj.leetcode.com/problems/excel-sheet-column-number/
Author : Changxi Wu
Date   : 2015-01-21

Given a column title as appear in an Excel sheet, return its corresponding column number.

For example:
    1 -> A
    2 -> B
    3 -> C
    ...
    26 -> Z
    27 -> AA
    28 -> AB
"""

# @return a string
def convertToTitle(num):


if __name__ == '__main__':
    test = [1:'A', 2:'B', 3:'C', 26:'Z', 27:'AA', 28:'AB']

Add excel sheet column title question description
Add excel sheet column title question description
