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: ['T', '4103', '3159', '3513', '6705', '2103', '1297', 'E', 'w', '1197', 'H', 'e', 'G', '553', 'h', 'j', '61', 'f', '5817', '5865', '2439', '2855', 'b', 'x', '8473', '7351', 'k', 'R', 'F', '8941', '3117', 'e', '2173', 'G', '2773', '2067', 'd', '7039', '2717', 'a']

20, 4103, 3159, 3513, 6705, 2103, 1297, 5, 23, 1197, 8, 5, 7, 553, 8, 10, 61, 6, 5817, 5865, 2439, 2855, 2, 24, 8473, 7351, 11, 18, 6, 8941, 3117, 5, 2173, 7, 2773, 2067, 4, 7039, 2717, 1