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: ['1827', 'i', '8471', 'W', '6579', 'p', 'L', '6201', 'e', 'w', 'v', 'm', '7793', 'B', 'y', '1779', '1049', '237', '6603', 'x', 'm', '759', '7389', 'c', 'r', 'i', 'c', '1741', 'm', 'E', '4821', 'a', '7349', '6251', 's']

1827, 9, 8471, 23, 6579, 16, 12, 6201, 5, 23, 22, 13, 7793, 2, 25, 1779, 1049, 237, 6603, 24, 13, 759, 7389, 3, 18, 9, 3, 1741, 13, 5, 4821, 1, 7349, 6251, 19