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', '5065', 'd', 'h', 'B', '8769', '5741', '1173', 'a', '1767', '6593', 'g', '2877', '711', '4539', '3885', '7389', '2787', '8365', 'W', 'i', 'J']

8, 5065, 4, 8, 2, 8769, 5741, 1173, 1, 1767, 6593, 7, 2877, 711, 4539, 3885, 7389, 2787, 8365, 23, 9, 10