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: ['g', '9781', '771', '8525', '5081', 'V', 'B', '9761', 'K', 'O', 'o', 'd', 'f', 'K', '777', 'z', '6703', '7305', 'q', '3871', '8961']

7, 9781, 771, 8525, 5081, 22, 2, 9761, 11, 15, 15, 4, 6, 11, 777, 26, 6703, 7305, 17, 3871, 8961