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: ['1023', '8807', 'B', 'u', 'F', '65', '3911', 'N', 'Q', '3549', '7995', 'f', 'f', '3401', 'g', 'Z', 'D', 'a', 'm', '3561', 'T', '7873', '4625', '9739', '8841', 'r', 'H', '9013', '9529']

1023, 8807, 2, 21, 6, 65, 3911, 14, 17, 3549, 7995, 6, 6, 3401, 7, 26, 4, 1, 13, 3561, 20, 7873, 4625, 9739, 8841, 18, 8, 9013, 9529