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: ['F', 'm', '5075', '2519', '359', 'm', 'N', '3253', 'Y', '3641', '7753', 'a', '6535', '5109', 'H', 'W', '2477', '7709', 'i', '463', 'z', 'N', 'm', 'x', 'H', '3161', 'W', 'o', 'p', '901', '9839', '6015', '7511', 'w', 'c', 'F', '3179', 'T', 'o', 'Q']

6, 13, 5075, 2519, 359, 13, 14, 3253, 25, 3641, 7753, 1, 6535, 5109, 8, 23, 2477, 7709, 9, 463, 26, 14, 13, 24, 8, 3161, 23, 15, 16, 901, 9839, 6015, 7511, 23, 3, 6, 3179, 20, 15, 17