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: ['8211', 'J', 'p', '1433', '6759', '5737', '5427', 'r', '6153', '3811', '2561', 'R', '3421', '7537', 'K', '9693', 'e', '1935', 'N', 'f', 'z', '6191', '8333']

8211, 10, 16, 1433, 6759, 5737, 5427, 18, 6153, 3811, 2561, 18, 3421, 7537, 11, 9693, 5, 1935, 14, 6, 26, 6191, 8333