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', 'Y', 'f', '3393', '8123', 'M', 'm', 'E', 'H', 'B', 'S', '5061', '6031', '9795', '5733', 'w', 'p', '8551', '5563', '793', 'G', '5711', 'X', 'T', 'z', 'I', '5501', 'R', 'J', 'u']

23, 25, 6, 3393, 8123, 13, 13, 5, 8, 2, 19, 5061, 6031, 9795, 5733, 23, 16, 8551, 5563, 793, 7, 5711, 24, 20, 26, 9, 5501, 18, 10, 21