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: ['Q', '275', '9113', '3595', '6299', 'o', 'w', 'G', 'a', 'l', '1683', '1465', '2555', '7113', 'l', '4073', 'O', '719', 's', 'i', '3343', '9489', '7669', 'D', 'j', 'S', 'w', '3557', 'O']

17, 275, 9113, 3595, 6299, 15, 23, 7, 1, 12, 1683, 1465, 2555, 7113, 12, 4073, 15, 719, 19, 9, 3343, 9489, 7669, 4, 10, 19, 23, 3557, 15