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: ['w', 'x', 'X', 'v', 'O', 'C', 'P', '719', '2557', 'o', 'M', '3433', '4179', '1829', '6619', '7621', 'Z', '6661', '4505', 'c', 'M', '4735', 'l', '1549', 'K', '9727', '3459', 'd', 'P', 'L', 'F']

23, 24, 24, 22, 15, 3, 16, 719, 2557, 15, 13, 3433, 4179, 1829, 6619, 7621, 26, 6661, 4505, 3, 13, 4735, 12, 1549, 11, 9727, 3459, 4, 16, 12, 6