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: ['e', 'u', '1701', '6525', '765', '869', 'Y', '9283', '3047', 'H', '2541', 'i', '7541', '4783', 'v', '5731', 'L', 'p']

5, 21, 1701, 6525, 765, 869, 25, 9283, 3047, 8, 2541, 9, 7541, 4783, 22, 5731, 12, 16