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: ['1237', 'j', 'v', 'a', 'r', '4029', '941', '9933', 'G', 'z', 'Z', 'c', 's', '2033', 'f', 'j', '5365', '8289', '4879', '6169', 'e', '889', 'J', '2243', 'J', '4091', 'M', 'X', 'x', 't', 'x', '8223', 'o', 'R', '5533', 'J', 'G']

1237, 10, 22, 1, 18, 4029, 941, 9933, 7, 26, 26, 3, 19, 2033, 6, 10, 5365, 8289, 4879, 6169, 5, 889, 10, 2243, 10, 4091, 13, 24, 24, 20, 24, 8223, 15, 18, 5533, 10, 7