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: ['v', '5263', 'w', '6949', '4121', '855', '8753', 'Z', '2767', 'c', '4233', '8049', 'B', '6779', 'N', '183', '5713', 'E', 'C', '1837', '4187', '3553', '9299', '9563', '8225', '2873', 'I', 'S', 'N', '9465', 'x', 'w', '8361', '5371', 'L', '8341', '9021']

22, 5263, 23, 6949, 4121, 855, 8753, 26, 2767, 3, 4233, 8049, 2, 6779, 14, 183, 5713, 5, 3, 1837, 4187, 3553, 9299, 9563, 8225, 2873, 9, 19, 14, 9465, 24, 23, 8361, 5371, 12, 8341, 9021