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: ['7785', '9327', 'Y', 'N', '8637', 'K', '533', '9925', '7161', 'J', '4969', '9547', '481', '8457', '779', '8045', 'Z', 'y', 'a', '4967', 'Y', '1927', 'f', 'B', '1109']

7785, 9327, 25, 14, 8637, 11, 533, 9925, 7161, 10, 4969, 9547, 481, 8457, 779, 8045, 26, 25, 1, 4967, 25, 1927, 6, 2, 1109