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.

['T', 'a', 'B', '3407', 'z', 'B', 'f', '4063', '8889', '3125']
20, 1, 2, 3407, 26, 2, 6, 4063, 8889, 3125

['S', '8419', 'p', '2659', 'y', 'e', '3697', '4945', 'S', '6933', 'W', '9691', 'S', '265', 'a', '7625']
19, 8419, 16, 2659, 25, 5, 3697, 4945, 19, 6933, 23, 9691, 19, 265, 1, 7625

['6063', 'P', 'o', '9785']

6063, 16, 15, 9785