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: ['6963', '6779', '5387', 'o', 'v', '4265', '8801', 'g', 'F', '4213', '4015', '857', '3911', 'P', 'u', 'i', 'd', 'e', '3797', 'B', 'u', '1817', '2197', 'i', '8267', 'S']

6963, 6779, 5387, 15, 22, 4265, 8801, 7, 6, 4213, 4015, 857, 3911, 16, 21, 9, 4, 5, 3797, 2, 21, 1817, 2197, 9, 8267, 19