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: ['h', 'C', 'o', '407', 'B', 'g', '1463', '3253', 'h', 'q', 'Y', 'N', 'M', '969', '2703', '1595', 'b', '1953', 'd', 'Y', 'V', '2333']

8, 3, 15, 407, 2, 7, 1463, 3253, 8, 17, 25, 14, 13, 969, 2703, 1595, 2, 1953, 4, 25, 22, 2333