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: ['Z', 'I', '4371', '5495', 'Q', 'E', 'J', '321', '8689', 'w', 'X', 'X', '7927', '6217', 'F', '9891', 's', '1137', '4821', 't', 'y', '1309', 'V', 'P', '5755', 'n', 'C', '3825', '2011']

26, 9, 4371, 5495, 17, 5, 10, 321, 8689, 23, 24, 24, 7927, 6217, 6, 9891, 19, 1137, 4821, 20, 25, 1309, 22, 16, 5755, 14, 3, 3825, 2011