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: ['4895', 'o', 'y', 'z', 'E', '2659', 'N', '8585', 'v', 'W', 'j', 't', '1617', '4989', 'O', 'B', '5307', 'h', 'H', '5815', '8597', '5187', '2061', 'B', 'm', 'A', 'B', '5183', '2255', '5819', 'n', 'S']

4895, 15, 25, 26, 5, 2659, 14, 8585, 22, 23, 10, 20, 1617, 4989, 15, 2, 5307, 8, 8, 5815, 8597, 5187, 2061, 2, 13, 1, 2, 5183, 2255, 5819, 14, 19