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: ['1135', '3369', 'w', '7153', '1157', '5879', '1687', '3057', 'q', 'V', 'L', '4879', 'I', '5841', '1515', '6143', '8809', 'L', '6777', 'm', 'C', '9555', 'x', 'F', '3489', 'y', '1519', 'i', '7695', '5117', '8413', 'R', '7955', '7543', '7813', '3169']

1135, 3369, 23, 7153, 1157, 5879, 1687, 3057, 17, 22, 12, 4879, 9, 5841, 1515, 6143, 8809, 12, 6777, 13, 3, 9555, 24, 6, 3489, 25, 1519, 9, 7695, 5117, 8413, 18, 7955, 7543, 7813, 3169