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: ['d', '2267', 'A', '6837', 'f', '543', 'h', '471', '1141', 'k', 'u', 'r', '1747', '8185', 'T', 'v', '7993', 'w', '6149', 'E', 'J', 'A', 'N', '3277', '4075', 'B', 'p', '6523', '3029', '9597', 'u', '5505', 'l', 'p', 'b', 'r', '1533', '4895', '4509', '2275']

4, 2267, 1, 6837, 6, 543, 8, 471, 1141, 11, 21, 18, 1747, 8185, 20, 22, 7993, 23, 6149, 5, 10, 1, 14, 3277, 4075, 2, 16, 6523, 3029, 9597, 21, 5505, 12, 16, 2, 18, 1533, 4895, 4509, 2275