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: ['8717', '9371', '6331', '5241', '5295', 'S', '5227', 'I', '8161', '3247', 'V', 'o', 'G', '3659', 'f', '4829', 'X', '8281', 'J', '5097', 'y', 'e', '7909', 'h', '2657', '4467', 'A', '1913', 'P', 'Z', '9755', 's', 's', 'b']

8717, 9371, 6331, 5241, 5295, 19, 5227, 9, 8161, 3247, 22, 15, 7, 3659, 6, 4829, 24, 8281, 10, 5097, 25, 5, 7909, 8, 2657, 4467, 1, 1913, 16, 26, 9755, 19, 19, 2