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: ['F', '8797', 'j', '5703', 'B', 'F', '3381', '843', '8863', 'x', 'z', '2277', 'R', '647', 'y', 'h', 'y', '6633', 'j', '9413', 'C', 'X', '4901', '3627', '8735', 'o', '9701', 's', 'F', '7065', 'Y']

6, 8797, 10, 5703, 2, 6, 3381, 843, 8863, 24, 26, 2277, 18, 647, 25, 8, 25, 6633, 10, 9413, 3, 24, 4901, 3627, 8735, 15, 9701, 19, 6, 7065, 25