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: ['4753', '3765', 'V', 'Q', 'W', '9685', '2233', 'j', '1703', 'j', '5471', 'b', '8297', 'Y', 'b', '7701', '4447', '1647', 'y', 'S', '8821', '3447', 'x', '743', 'i']

4753, 3765, 22, 17, 23, 9685, 2233, 10, 1703, 10, 5471, 2, 8297, 25, 2, 7701, 4447, 1647, 25, 19, 8821, 3447, 24, 743, 9