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: ['5867', '8923', '8873', '8155', '5663', 'l', '4411', '9429', 'v', '7155', 'h', 'S', 'g', 'Q', 'N', 'z', 'S', 'h', '6753', 'o', '525', 'Y', 'n', '2855', '8433', '2125', 'n', 'r', 'X', '4863']

5867, 8923, 8873, 8155, 5663, 12, 4411, 9429, 22, 7155, 8, 19, 7, 17, 14, 26, 19, 8, 6753, 15, 525, 25, 14, 2855, 8433, 2125, 14, 18, 24, 4863