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: ['I', '8267', '7579', '6693', '3585', 'q', '117', 'R', 'd', 'y', 'h', 't', '4315', 'm', 'q', '6779', '5137', '9573', 'Q', '5701', '587', '6673', 'R', 'l', 'd', '1053', '3283', 'S', '4035', '3113', '9061', 'C']

9, 8267, 7579, 6693, 3585, 17, 117, 18, 4, 25, 8, 20, 4315, 13, 17, 6779, 5137, 9573, 17, 5701, 587, 6673, 18, 12, 4, 1053, 3283, 19, 4035, 3113, 9061, 3