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: ['7815', 'j', '2625', '9745', 'm', '1757', 'i', '8549', '793', 'H', 'x', '6905', '6469', 'N', 'f', 'T', 'w', '385', 't', 'q']

7815, 10, 2625, 9745, 13, 1757, 9, 8549, 793, 8, 24, 6905, 6469, 14, 6, 20, 23, 385, 20, 17