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: ['6271', '5397', '167', '7071', '2583', '7359', 'y', 'P', '7105', '4161', '2063', '5383', 'V', 'M', 'x', 'M', '2061', 'm', 'C', '5737', 'e', 'h', 'h', '7021', 'L', '9917', 'k', '3959']

6271, 5397, 167, 7071, 2583, 7359, 25, 16, 7105, 4161, 2063, 5383, 22, 13, 24, 13, 2061, 13, 3, 5737, 5, 8, 8, 7021, 12, 9917, 11, 3959