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: ['d', 'H', 'q', 'K', '1949', 'Q', 'g', 'U', '1735', 'Q', '225', '5393', '801', 'f', 'D', '3649', '5073', '1057', 'U', '6837', 'L', 'k', '8605', '3479', 'T', 'l', 'Y', 'S', '4919', 'J', '3463', '1387', '9949', '5609', 'r', 'P', 'i']

4, 8, 17, 11, 1949, 17, 7, 21, 1735, 17, 225, 5393, 801, 6, 4, 3649, 5073, 1057, 21, 6837, 12, 11, 8605, 3479, 20, 12, 25, 19, 4919, 10, 3463, 1387, 9949, 5609, 18, 16, 9