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: ['1117', 'O', '8545', 'Z', 'X', '7971', 'q', 'l', 'B', 'V']

1117, 15, 8545, 26, 24, 7971, 17, 12, 2, 22