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: ['m', 'L', '627', 'X', 'M', '3611', '785', '4823', 'h', '1543', 'T', '3779', 'j', 't', '563', 'L', '8077', '143', '1261']

13, 12, 627, 24, 13, 3611, 785, 4823, 8, 1543, 20, 3779, 10, 20, 563, 12, 8077, 143, 1261