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: ['Q', 'T', 'M', '7759', 'K', 'r', 'Y', 'o', 'R', '3521', '5881', '261', '2979', '3907', 'i', 'G', 'J', 'P', '353', 'h', 'L', '5481', '6635', '4381', '1689', '5733', '2545', 'P', '2161', '9349', 'w', 'F']

17, 20, 13, 7759, 11, 18, 25, 15, 18, 3521, 5881, 261, 2979, 3907, 9, 7, 10, 16, 353, 8, 12, 5481, 6635, 4381, 1689, 5733, 2545, 16, 2161, 9349, 23, 6