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: ['865', '473', '1081', 'A', '691', 'P', '3853', '3763', 'y', 'e', 'k', 't', '8861', 't', 'A', 'C', '7197', '533', 'G', 'a', 'W', '1929', '5901', 'z', 'P', 'w', 'J', '7167']

865, 473, 1081, 1, 691, 16, 3853, 3763, 25, 5, 11, 20, 8861, 20, 1, 3, 7197, 533, 7, 1, 23, 1929, 5901, 26, 16, 23, 10, 7167