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: ['M', 'c', 'm', 'z', 'J', 'l', '8037', 'b', 'K', 'k', 'H', '2671', '6105', '7937', '5383', 'h', 'E', 'j', 'Z', '8023', '3459', 'S', '4023', 'W', 'N', '8451', 'g', '5301', 'n', 'E', '1111', 'p', '4645', 'k', 'H']

13, 3, 13, 26, 10, 12, 8037, 2, 11, 11, 8, 2671, 6105, 7937, 5383, 8, 5, 10, 26, 8023, 3459, 19, 4023, 23, 14, 8451, 7, 5301, 14, 5, 1111, 16, 4645, 11, 8