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: ['y', '7923', 'u', '1321', '4587', '8055', 'V', '9401', '3115', 's']

25, 7923, 21, 1321, 4587, 8055, 22, 9401, 3115, 19