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: ['w', 'N', 'M', '9449', 'V', 'B', '7123', 'Z', '7535', '5487', '679', 'y', '8113', '8375', 'u', '4667', 'P', 'j', 'O', 'o', 'l', '7135', '8669', '4245', '7723', '8459', 'P', 'I', 's', '8859', '7275', 'N', '7127', 't', '8389', '7135']

23, 14, 13, 9449, 22, 2, 7123, 26, 7535, 5487, 679, 25, 8113, 8375, 21, 4667, 16, 10, 15, 15, 12, 7135, 8669, 4245, 7723, 8459, 16, 9, 19, 8859, 7275, 14, 7127, 20, 8389, 7135