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: ['j', '1565', '3373', 'K', 'X', 'o', 'N', '8603', '8943', 'M', 'm', '1333', '9353', 'S', '637', 'E', '2769', 'r', '9113', '5191', '2307', '7071', '7247', '3841', '5091', '4143', '8709', 'Q', 'W', 'J', '8075', 'f', '7957', 'C', '2847', 'u', '2035', 'Y', 'y', 'D']

10, 1565, 3373, 11, 24, 15, 14, 8603, 8943, 13, 13, 1333, 9353, 19, 637, 5, 2769, 18, 9113, 5191, 2307, 7071, 7247, 3841, 5091, 4143, 8709, 17, 23, 10, 8075, 6, 7957, 3, 2847, 21, 2035, 25, 25, 4