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: ['z', 'a', '1161', 'O', '2501', 'Y', '3701', '7913', '9761', '1675', 'V', '1111', 'x', 'r', '7015', 'P', '4353', '977', '5601', 'z', '2535', 'e', '2717', 'q', 'p', 'X', '6587', '6701', 'z']

26, 1, 1161, 15, 2501, 25, 3701, 7913, 9761, 1675, 22, 1111, 24, 18, 7015, 16, 4353, 977, 5601, 26, 2535, 5, 2717, 17, 16, 24, 6587, 6701, 26