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: ['703', 'h', 'T', '9825', '8643', 'v', '6005', 'p', '9625', 'T', '1125', 'w', '7025', 'U', 'd', 'V', 'T', '5875', '7839', 'C', 'M', 'F', '5371', 'O', 'j', '1127', '6531', '8103', 'H', '4387', 'w', 'Y', 'O', '669', 'c']

703, 8, 20, 9825, 8643, 22, 6005, 16, 9625, 20, 1125, 23, 7025, 21, 4, 22, 20, 5875, 7839, 3, 13, 6, 5371, 15, 10, 1127, 6531, 8103, 8, 4387, 23, 25, 15, 669, 3