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: ['651', '7449', '1161', 'a', '9', '1099', '4293', '8351', 'C', '1711', 'k', '2941', '8387', 'd', 'b', 'e', 'Q']

651, 7449, 1161, 1, 9, 1099, 4293, 8351, 3, 1711, 11, 2941, 8387, 4, 2, 5, 17