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: ['1467', '4769', '597', '7685', 'y', '9613', '7667', '9803', '4183', '3343']

1467, 4769, 597, 7685, 25, 9613, 7667, 9803, 4183, 3343