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: ['m', '2567', '3855', '5321', '5933', 'v', '6601', '6631', 'Z', '7661', 'h', 'm', 'W', 'E', '2935', '8979', '7925', '587', 'g', 'p', '775']

13, 2567, 3855, 5321, 5933, 22, 6601, 6631, 26, 7661, 8, 13, 23, 5, 2935, 8979, 7925, 587, 7, 16, 775