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: ['7747', 'W', 'G', '5803', '5259', 'v', 'l', 'I', 'H', 's', '4343', 'w', '4211', '111', 'q', '2869', 'p', 'H', 'x', '841', 'R', '4991', '8083', 'Q', '7925']

7747, 23, 7, 5803, 5259, 22, 12, 9, 8, 19, 4343, 23, 4211, 111, 17, 2869, 16, 8, 24, 841, 18, 4991, 8083, 17, 7925