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', 'b', 'H', '5769', 'G', 'Z', 't', 'h', '3843', '3149', 'G', '6119', 't', 'M', '9415', '7765', 'G', 'N', 'M', '7327', 'y', 'b', 'k', '5915', 'j', 'J', 'R', 'T', '9029', 'R', 'w', '5453', '5515', 'd']

17, 2, 8, 5769, 7, 26, 20, 8, 3843, 3149, 7, 6119, 20, 13, 9415, 7765, 7, 14, 13, 7327, 25, 2, 11, 5915, 10, 10, 18, 20, 9029, 18, 23, 5453, 5515, 4