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: ['1985', '639', '8909', '4945', 'W', 'L', '1017', 'M', 'E', '3625', 'Q', '4023', 'S', 'o', 'q', '2387', '4633', '8183', '6135', '4587', 'v', 'G', 's', 'R', 'L', 'E', 'T']

1985, 639, 8909, 4945, 23, 12, 1017, 13, 5, 3625, 17, 4023, 19, 15, 17, 2387, 4633, 8183, 6135, 4587, 22, 7, 19, 18, 12, 5, 20