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: ['53', '701', '6695', 't', '7619', 'j', '4163', '189', '2535', '7263', '5065', 'W', '723', 'i', 'r', '9917', 'M', '711', '2293', 'r', 'i', 'k', 'c', '3811', 'h', '3959', '8499', '8325', '2477', 'K', '699', 'X', 'b', 'R', '8585', 'F', '2487']

53, 701, 6695, 20, 7619, 10, 4163, 189, 2535, 7263, 5065, 23, 723, 9, 18, 9917, 13, 711, 2293, 18, 9, 11, 3, 3811, 8, 3959, 8499, 8325, 2477, 11, 699, 24, 2, 18, 8585, 6, 2487