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: ['K', '3179', '2721', 'T', '4303', '4715', 'Q', '4125', 'R', '7227', '1697', 'K', 'r', 'B', '7771', 'v', '9407', 'L', '8585', 'U', 'z', 'n', '8257', 'u', '8935', '1633', 'g', '4749', '6227', 'E', 'v', 'E', '5709', '7179']

11, 3179, 2721, 20, 4303, 4715, 17, 4125, 18, 7227, 1697, 11, 18, 2, 7771, 22, 9407, 12, 8585, 21, 26, 14, 8257, 21, 8935, 1633, 7, 4749, 6227, 5, 22, 5, 5709, 7179