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: ['7363', 'T', 'g', '7709', 'F', 'f', '5497', 'G', 'Y', 'z', '8547', '1207', '3801', '205', '3291', '4771', '9453', '6437', '5873', '4381', 'h', '2023', '3287', '1425', '9299', 'U', 'I', '7205', '3183', 'L', '3743', 'b', '3645', '9287', 'H']

7363, 20, 7, 7709, 6, 6, 5497, 7, 25, 26, 8547, 1207, 3801, 205, 3291, 4771, 9453, 6437, 5873, 4381, 8, 2023, 3287, 1425, 9299, 21, 9, 7205, 3183, 12, 3743, 2, 3645, 9287, 8