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: ['A', 'i', 'P', '9739', '5989', 'x', '1273', '1095', '8863', 'J', 'W', '1731', '11', '5163', 'O', 'g', 'A', 'N', 'v', '2317', 'r', 'l', 'h', 'Q', 'F', 'U', '8965']

1, 9, 16, 9739, 5989, 24, 1273, 1095, 8863, 10, 23, 1731, 11, 5163, 15, 7, 1, 14, 22, 2317, 18, 12, 8, 17, 6, 21, 8965