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: ['5035', '6087', '2221', '9563', 'V', '7967', '2627', '3395', 'D', '4937', 'i', 'l', '4719', '6071', 'X', 'e', '469', 'y', 'b']

5035, 6087, 2221, 9563, 22, 7967, 2627, 3395, 4, 4937, 9, 12, 4719, 6071, 24, 5, 469, 25, 2