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: ['H', 'c', 'v', 'Q', '1931', 'y', 'O', 's', '6995', 'Q', '27', 'J', 'F', '2545', 'e', '7127', 'Z', '4823', 'u', '5905', 'O', 'H', '3919', 'd', 'D', 'c', '8343', '4411', 'm', 'j', 'X', '5303', 'C']

8, 3, 22, 17, 1931, 25, 15, 19, 6995, 17, 27, 10, 6, 2545, 5, 7127, 26, 4823, 21, 5905, 15, 8, 3919, 4, 4, 3, 8343, 4411, 13, 10, 24, 5303, 3