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: ['6895', '4689', 'C', '8093', 'n', 'u', '1951', 'R', '7349', 'd', 'M', 'q', 'Q', 'g', 't', 'C', '359', 'K', 'd', 'Z', 'a']

6895, 4689, 3, 8093, 14, 21, 1951, 18, 7349, 4, 13, 17, 17, 7, 20, 3, 359, 11, 4, 26, 1