TASK 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.
PROBLEM: ['35', '8319', '8157', 'E']

SOLUTION: 35, 8319, 8157, 5

PROBLEM: ['5541', '9965', 'V', '4097', 'S', 'O', '3239', '9779', '2051', '6377', 'I', 'P', '337', 'm', 'k', '4349', 'H', 'Z', 'l', '9053', 'M', 'k', '7005', '671', 'k', '8201']

SOLUTION: 5541, 9965, 22, 4097, 19, 15, 3239, 9779, 2051, 6377, 9, 16, 337, 13, 11, 4349, 8, 26, 12, 9053, 13, 11, 7005, 671, 11, 8201

PROBLEM: ['6821', 'D', 'I', '6429', '8651', '8229', 'Y', 'K', 'o', '3905', '2533', '6949', 'j', 'e', 'Y', '1677', '1863', '767', '5135', '7207', 'E', '9793']

SOLUTION:
6821, 4, 9, 6429, 8651, 8229, 25, 11, 15, 3905, 2533, 6949, 10, 5, 25, 1677, 1863, 767, 5135, 7207, 5, 9793