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: ['F', '2283', 'v', 'r', '6851', 'G', '2291', 'C', 'v', '8555', 'q', 'u', '8107', '4403', '1031', '8701', 'v', '1979', '6473', 'Y', '9139', 'f', 'h', '7827', '2741', 'D', 'x', 'f', '3477', 'j']

6, 2283, 22, 18, 6851, 7, 2291, 3, 22, 8555, 17, 21, 8107, 4403, 1031, 8701, 22, 1979, 6473, 25, 9139, 6, 8, 7827, 2741, 4, 24, 6, 3477, 10