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: ['601', 'S', '5123', 'h', 'Z', 'F', '4769', '2451', 'A', 'D', '6293', 'n', '5441', 'D', '4945', '9195']

601, 19, 5123, 8, 26, 6, 4769, 2451, 1, 4, 6293, 14, 5441, 4, 4945, 9195