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', '3051', 'V', '425', 'X', '623', 's', 'g', '1807', '2577', '2443', 'P', 'r', '5669', 'C', '4051', 'P', 'P', '185', '4383', 'B', 'P', 'F', 'b', 'a', '9473', '7441', 'g', '5637', '9733', '411', '6097', 't', '6719', 'A', '4647', 'K']

6, 3051, 22, 425, 24, 623, 19, 7, 1807, 2577, 2443, 16, 18, 5669, 3, 4051, 16, 16, 185, 4383, 2, 16, 6, 2, 1, 9473, 7441, 7, 5637, 9733, 411, 6097, 20, 6719, 1, 4647, 11