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: ['951', 'Q', '7521', 'U', 'm', 'W', '2597', '8493', '5641', '7459', '5085', 'Y', '1529', 'D', 'M', 'z', '2251', 'z', 'F', 'z', 'T', '2743', '1999', '6165', 'Y', '5187', 'v', '195', '4955', 'Q', '9337', '8577']

951, 17, 7521, 21, 13, 23, 2597, 8493, 5641, 7459, 5085, 25, 1529, 4, 13, 26, 2251, 26, 6, 26, 20, 2743, 1999, 6165, 25, 5187, 22, 195, 4955, 17, 9337, 8577