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: ['v', 'M', '727', 'L', 's', '6557', '9533', 'W', '6683', 's', '9615', '3535', '8195', '9927', 'C', 'c', '3473', 'h', 'x', '2863', '3857', 'Q', '387', 'K', '3027']

22, 13, 727, 12, 19, 6557, 9533, 23, 6683, 19, 9615, 3535, 8195, 9927, 3, 3, 3473, 8, 24, 2863, 3857, 17, 387, 11, 3027