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: ['X', '6045', '5167', '9163', '365', '2209', 'a', '3687', '6301', '8135', '2753', '6501', 'k', '6475', '7733', '3617', '9175', 'v', 'O', 's', '3751', '1261', 'j', 's', 'O', '869', 'B', '3391', '4545', 't', 'R']

24, 6045, 5167, 9163, 365, 2209, 1, 3687, 6301, 8135, 2753, 6501, 11, 6475, 7733, 3617, 9175, 22, 15, 19, 3751, 1261, 10, 19, 15, 869, 2, 3391, 4545, 20, 18