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: ['s', '6343', '9575', '7655', '6361', 'v', '7119', 'z', 'X', 'X', 'k', 'W', '6839', 'v', '4271', 'B', 'h', 'W', '4793', '1301', '217', 'P', 'h']

19, 6343, 9575, 7655, 6361, 22, 7119, 26, 24, 24, 11, 23, 6839, 22, 4271, 2, 8, 23, 4793, 1301, 217, 16, 8