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: ['5757', 'V', 'J', '255', 'I', 'V', 'a', '9533', 'h', '8741', 'b', 'O', 'r', 'Z', 'l', '3043', 'q', 'j', '1205', 'q', 'd', '5299', '8083', 'J', 'I', '3857', '1819', '1695', '1847', 'E', '2043', '4457', 'V', 'd', 't', 'E', 'r']

5757, 22, 10, 255, 9, 22, 1, 9533, 8, 8741, 2, 15, 18, 26, 12, 3043, 17, 10, 1205, 17, 4, 5299, 8083, 10, 9, 3857, 1819, 1695, 1847, 5, 2043, 4457, 22, 4, 20, 5, 18