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: ['5577', '1577', 'G', 'q', '6953', 'w', '5419', '3429', 'B', 'v', 'B', 'X', 'b', '7941', 'i', '5283', 'R', '2917', 'Q', 'J', 'H']

5577, 1577, 7, 17, 6953, 23, 5419, 3429, 2, 22, 2, 24, 2, 7941, 9, 5283, 18, 2917, 17, 10, 8