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: ['2409', '6737', 'o', 'd', '9717', 'Z', '6345', '8059', '4909', 'X', '2929', 'h', 'J', 'z', '1319', '9351', '8589', '9933']

2409, 6737, 15, 4, 9717, 26, 6345, 8059, 4909, 24, 2929, 8, 10, 26, 1319, 9351, 8589, 9933