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: ['X', 'F', 'Y', 'U', '3117', 'y', '1447', '9221', 'V', 'z', '6319', 'b', 'J', 'r', '833', 'S', 'P', 'U', '1887', 'k', '9787', '8943', '2977', 'n', '8097', 'W', '7027', 'O', '2889', 'k', '1773', 'H', 'D', 'U', 'K', 'Q', 'm', 'w', 'N', 'v']

24, 6, 25, 21, 3117, 25, 1447, 9221, 22, 26, 6319, 2, 10, 18, 833, 19, 16, 21, 1887, 11, 9787, 8943, 2977, 14, 8097, 23, 7027, 15, 2889, 11, 1773, 8, 4, 21, 11, 17, 13, 23, 14, 22