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: ['4511', '3187', 'A', '4469', '7071', 'd', '3401', '4495', 'D', 'O', '1637', 'X', '4547', '4637', 'S', 'D', '4555', '7091', 'N', '1603', 'n', 'O', '429', '6795', 'm', '8921', '5357', '101', '7671', '7121', '2667']

SOLUTION: 4511, 3187, 1, 4469, 7071, 4, 3401, 4495, 4, 15, 1637, 24, 4547, 4637, 19, 4, 4555, 7091, 14, 1603, 14, 15, 429, 6795, 13, 8921, 5357, 101, 7671, 7121, 2667

PROBLEM: ['y', '9573', 'j', '6697', '4179', '8985', '8999', 'R', '2585', 'h', 'p', '9407', '9575', '2639', '7655', '4683', 'Y']

SOLUTION: 25, 9573, 10, 6697, 4179, 8985, 8999, 18, 2585, 8, 16, 9407, 9575, 2639, 7655, 4683, 25

PROBLEM: ['V', 'C', '9827', '1247', '6001', 'H', 'S', 'h', '6389', '6379', '3663', 't', '8259', 'H', 'x', '8483', '1329', '8541', 'e', '9491', '2199', '5303']

SOLUTION:
22, 3, 9827, 1247, 6001, 8, 19, 8, 6389, 6379, 3663, 20, 8259, 8, 24, 8483, 1329, 8541, 5, 9491, 2199, 5303