Definition: In this task, you are given an input list A. You need to convert all the alphabets in the list with a number representing their position in the English alphabet. E.g., replace A by 1, B by 2, a by 1, b by 2, and so on.
Input: ['f', '5963', '6973', 'g', 'Q', 'P', 'S', '4323', '7891', 'Z', '5579', '3375', '4187', '1619', '3629', 'M', '1897', '585', 'd', '4973', 'j', '5591', '1741', 't', 'L', 'L', 'n', 's', 'q', '8973', 'M', 'v', '5367', 'B', 'I', '5389', 'j', '1763', 'm', '9095']

6, 5963, 6973, 7, 17, 16, 19, 4323, 7891, 26, 5579, 3375, 4187, 1619, 3629, 13, 1897, 585, 4, 4973, 10, 5591, 1741, 20, 12, 12, 14, 19, 17, 8973, 13, 22, 5367, 2, 9, 5389, 10, 1763, 13, 9095