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: ['z', 'h', '4771', 'I', 'y', '7749', 'y', '8571', 'l', 'C', '9845', '9565', '8233', '7487', '7299', 'S', 'N', 'g', '8387', '5931', '7467', '3241', '8005', '8249', '3213', 'N', 'U', '3787', '7529', 'w', '1775']

26, 8, 4771, 9, 25, 7749, 25, 8571, 12, 3, 9845, 9565, 8233, 7487, 7299, 19, 14, 7, 8387, 5931, 7467, 3241, 8005, 8249, 3213, 14, 21, 3787, 7529, 23, 1775