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: ['p', 'w', 'N', '6723', 'W', 'j', '1745', '1895', '825', '8455', 'F', 'E', '533', 'a', 'r', '6863', '2765', 'E', 'Y']

16, 23, 14, 6723, 23, 10, 1745, 1895, 825, 8455, 6, 5, 533, 1, 18, 6863, 2765, 5, 25