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', 'c', 'G', '5329', 'H', 'x', 'K', 'e', '8701', 'O', 'i', '9971', 'M', 'v', '3059', '9447', 'r', '3835', 'U', '7811', 'h', 't', '1237', 'b', 'z', '5059', 'o', 'S', 'z', '4983', 'Y', '7335', 'O', 'I']

26, 3, 7, 5329, 8, 24, 11, 5, 8701, 15, 9, 9971, 13, 22, 3059, 9447, 18, 3835, 21, 7811, 8, 20, 1237, 2, 26, 5059, 15, 19, 26, 4983, 25, 7335, 15, 9