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: ['3767', 'z', 'h', 'd', 'h', 'y', 'G', 'a', 'm', '5293', 'p', 'O', '9779']

3767, 26, 8, 4, 8, 25, 7, 1, 13, 5293, 16, 15, 9779