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', '4665', '7541', '2649', '9007', '3267', '929', 'B', 'K']

11, 4665, 7541, 2649, 9007, 3267, 929, 2, 11