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: ['8623', '3049', 'D', '7051', 't', '9763', 'g', '7133', 'W', '3343', '9093', '9161', 'v', '6621', 'f', 'F', '8413', 'o', 'X', '9717', '995', '9045', 'T', 'q', '3327', '6991', '8967', '5297', '4465', '6457', 'q', '137', 'Y', 'g']

8623, 3049, 4, 7051, 20, 9763, 7, 7133, 23, 3343, 9093, 9161, 22, 6621, 6, 6, 8413, 15, 24, 9717, 995, 9045, 20, 17, 3327, 6991, 8967, 5297, 4465, 6457, 17, 137, 25, 7