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: ['177', '1241', '9335', 'Y', 'C', '5057', 'h', '7773', '8477', 'f', '3555', 's', 's', 'k', 'a', 'k', 'n', '603', '5707', '263', '873', 'R', '7069', '3983', 'd', '7639', 'n', 'T', 'L', 'q', '8301', 'B', 'K', '5561', 'o']

177, 1241, 9335, 25, 3, 5057, 8, 7773, 8477, 6, 3555, 19, 19, 11, 1, 11, 14, 603, 5707, 263, 873, 18, 7069, 3983, 4, 7639, 14, 20, 12, 17, 8301, 2, 11, 5561, 15