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: ['5361', '1763', '681', 'h', '8353', '5499', 'Z', 'u', 'q', '1721', 'E', '1167', 'l', 'f', '9119', 'q', '2227', '6305', '545', 'C', '1801', '4971', 'k', 'i', 'o', '3215', 'p', 'c', '721', 'H', 'A', '8907', '8525', 'I']

5361, 1763, 681, 8, 8353, 5499, 26, 21, 17, 1721, 5, 1167, 12, 6, 9119, 17, 2227, 6305, 545, 3, 1801, 4971, 11, 9, 15, 3215, 16, 3, 721, 8, 1, 8907, 8525, 9