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: ['c', 'q', 'N', '6847', 'V', '5035', 'E', 'F', 's', 'z', 'G']

3, 17, 14, 6847, 22, 5035, 5, 6, 19, 26, 7