Given the task definition and input, reply with output. 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.

['2247', 'l', 'B', '4827', 'K', '8787', 'F', 'J', '1319', '9625', '1941', 'e', 'C', '8341', 'Q', '371', 'h', '6903', '3553', 'H', '5413', 'U', 'H', 'U', '5335', '3601', '2279', 'l', '8609', '7763', '1493', 'x', 'o', 'u', 'M', 'D', '4037']

2247, 12, 2, 4827, 11, 8787, 6, 10, 1319, 9625, 1941, 5, 3, 8341, 17, 371, 8, 6903, 3553, 8, 5413, 21, 8, 21, 5335, 3601, 2279, 12, 8609, 7763, 1493, 24, 15, 21, 13, 4, 4037