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: ['n', '8811', '1997', '7979', 'k', 'G', '687', '3893', 'l', '1865', 'M', '9825', 'q', '3393', '4061', '3235', '6103', 'z']

14, 8811, 1997, 7979, 11, 7, 687, 3893, 12, 1865, 13, 9825, 17, 3393, 4061, 3235, 6103, 26