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: ['103', '3261', 'k', 'h', 'E', 'c', '8187', '2395', 'c', 'f', 'm', 'R', '2167', 'm', '441', '2443', '53', 'e', 'H', '8969', 'M', '7267', 'R', '9697', '6641', 'a', 'z', '3929', 'c', 'p', 'b', '8143', 'F', '4571', 'P', 'C', '9187', 'a', '4575', 'w']

103, 3261, 11, 8, 5, 3, 8187, 2395, 3, 6, 13, 18, 2167, 13, 441, 2443, 53, 5, 8, 8969, 13, 7267, 18, 9697, 6641, 1, 26, 3929, 3, 16, 2, 8143, 6, 4571, 16, 3, 9187, 1, 4575, 23