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', '3183', 'Q', 'i', 't', 'j', 'y', 'Y', '8171', 't', '4421', '3315', 'd', '3853', '6475', 'H', 'Z', 'P', '8101', '3383', '8723', '9493']

17, 3183, 17, 9, 20, 10, 25, 25, 8171, 20, 4421, 3315, 4, 3853, 6475, 8, 26, 16, 8101, 3383, 8723, 9493