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: ['2329', 'D', '5647', '8721', 'e', 'g', 'A', 'W', '1289', '6205', '7703']

2329, 4, 5647, 8721, 5, 7, 1, 23, 1289, 6205, 7703