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: ['F', 'x', '3759', 'M', 'b', '7593', '4469', 'R', '7909', 'E', '7739', 'o', 'h', '8219', 'q', 'm']

6, 24, 3759, 13, 2, 7593, 4469, 18, 7909, 5, 7739, 15, 8, 8219, 17, 13