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: ['2441', 'L', 'r', '2557', 'n', 'J', '3851', '2867', '6289', '6539', 'q', '6135', 'D', '5249', '9851', '5067', 'i', '6543', 'O', '2363', 'I', 'x', '4733', '4929', '5505', 'z', '2487', 'h', 's', '419', 't', '7549', 'V', 'u', 'c', 'V', 'C', '4581', 'v', '4087']

2441, 12, 18, 2557, 14, 10, 3851, 2867, 6289, 6539, 17, 6135, 4, 5249, 9851, 5067, 9, 6543, 15, 2363, 9, 24, 4733, 4929, 5505, 26, 2487, 8, 19, 419, 20, 7549, 22, 21, 3, 22, 3, 4581, 22, 4087