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: ['h', 'n', '1353', '4459', '5443', '5147', 'Y', '413', '467', '187', 'k', 'F', 'W', '4249', 'C', '3013', 'p', 'Y', '1573', '773', 'Q', 'A', '2823']

8, 14, 1353, 4459, 5443, 5147, 25, 413, 467, 187, 11, 6, 23, 4249, 3, 3013, 16, 25, 1573, 773, 17, 1, 2823