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: ['w', 'J', '4431', 't', 'C', '9269', '6941', 'M', '1359', '5421', 'g', 'V', '7295', 'W', '8627', '7947', '7527', '3301', 'v', 'P', '6267', '939']

23, 10, 4431, 20, 3, 9269, 6941, 13, 1359, 5421, 7, 22, 7295, 23, 8627, 7947, 7527, 3301, 22, 16, 6267, 939