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: ['7693', '1031', '9921', '4319', '6753', 'B', '2143', 'H', 'f', '2903', 'i', 'v', 'm', '4565', '3281', 'F', '6999', '5695', '4783', '2091', 'M', '6215', 'A', 'M', 's', 'T', '635', '2441', '787', '9811', '2233', '7543', '8345', 'm', '5691', '4565', '7247', '7057']

7693, 1031, 9921, 4319, 6753, 2, 2143, 8, 6, 2903, 9, 22, 13, 4565, 3281, 6, 6999, 5695, 4783, 2091, 13, 6215, 1, 13, 19, 20, 635, 2441, 787, 9811, 2233, 7543, 8345, 13, 5691, 4565, 7247, 7057