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.

['8773', 'f', '3171', '9425', '7489', 'z', 'V', '9409', 'K', '2815', 'p', '8479', '1787', 'm', '5481', '2591', 'k', '1545', '8041', '2425', '5569', 'J', 'c', 'T', '4839', 'n', '5085', '2685', '4129', 'H', 'P', '4391', 'G', '6285', 'k', 'z', 'v']
8773, 6, 3171, 9425, 7489, 26, 22, 9409, 11, 2815, 16, 8479, 1787, 13, 5481, 2591, 11, 1545, 8041, 2425, 5569, 10, 3, 20, 4839, 14, 5085, 2685, 4129, 8, 16, 4391, 7, 6285, 11, 26, 22

['K', 'U', '8245', 'I', 'C', '5815', '5163', '3535', 'h', 'J', 'k', 'i', '5525', 'y', 's', 'u']
11, 21, 8245, 9, 3, 5815, 5163, 3535, 8, 10, 11, 9, 5525, 25, 19, 21

['2455', 'O', '8025', 'o', 't', 'Z', 'N', 'Z']

2455, 15, 8025, 15, 20, 26, 14, 26