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: ['947', '2159', '9743', 'j', 'p', '3207', 'O', '8297', 'F', '4071', 's', 'I', 'z', '367', 'w', 'O', '6719', 'T', 'c', '2893', 'l', 'V']

947, 2159, 9743, 10, 16, 3207, 15, 8297, 6, 4071, 19, 9, 26, 367, 23, 15, 6719, 20, 3, 2893, 12, 22