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: ['Q', 'J', 'b', 'y', '1661', '4311', '7593', 'H', 'I', 'U', 'I', 'M', 'o', '9783', '4061', 'T', 'r', 'k', '9013', '7673', 'O', '6497', 'C', '8217', 'Y', '3359', 'V', '8465', '1851', '1993', 's', 'h', '7975']

17, 10, 2, 25, 1661, 4311, 7593, 8, 9, 21, 9, 13, 15, 9783, 4061, 20, 18, 11, 9013, 7673, 15, 6497, 3, 8217, 25, 3359, 22, 8465, 1851, 1993, 19, 8, 7975