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: ['1673', 's', '3227', 'h', '7795', 'n', '2039', 'w', 'X', 'M', 'z', 'B', 'O', '701', '8179', 'B', '599', 'c', 'R', 'T', 'o', '883', 'O', 'j', 's', '975', '4553', 'M']

1673, 19, 3227, 8, 7795, 14, 2039, 23, 24, 13, 26, 2, 15, 701, 8179, 2, 599, 3, 18, 20, 15, 883, 15, 10, 19, 975, 4553, 13