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: ['Y', 'b', '7879', '6387', '3045', '5159', '6251', '5323', 'r', '5533', '4121', 'g', 'V', 'w', '9547', '1021', 'l', '4903', '447', 'p', 'W', '4095', 'D', 'g', '2035', '3549', 'w', 'S', 'w', '6453', '7081', 'M', '3201', 'v']

25, 2, 7879, 6387, 3045, 5159, 6251, 5323, 18, 5533, 4121, 7, 22, 23, 9547, 1021, 12, 4903, 447, 16, 23, 4095, 4, 7, 2035, 3549, 23, 19, 23, 6453, 7081, 13, 3201, 22