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: ['3835', '9805', 'T', '6891', '1241', '9067', 'j', 'y', 'e', '2383', '8089', 'J', '1799', 'c', '3373', 'v', 'b', 't', '281', '7267']

3835, 9805, 20, 6891, 1241, 9067, 10, 25, 5, 2383, 8089, 10, 1799, 3, 3373, 22, 2, 20, 281, 7267