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: ['z', 'Z', 'T', 'q', '7009', 'S', 'Q', '6747', 'g', '4887', '1149', 'X', 'k']

26, 26, 20, 17, 7009, 19, 17, 6747, 7, 4887, 1149, 24, 11