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: ['545', 't', '2075', '4865', '9523', 'n', '2721', '6463', 'A', '1501', 'Y', 'I', 'm', 'y', 'b', 'I', '9109', 'P', 'b', 'H', '9507', '9179', 'A', 'E', '4325', '4445', '3805', 'f', 'C', 'S', 'A', '4941']

545, 20, 2075, 4865, 9523, 14, 2721, 6463, 1, 1501, 25, 9, 13, 25, 2, 9, 9109, 16, 2, 8, 9507, 9179, 1, 5, 4325, 4445, 3805, 6, 3, 19, 1, 4941