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: ['6797', 'p', '9041', 'L', 'E', 'z', 'u', 'H', '1239', '479', '8463', '3179', '119', 'a', '9307', 'e', '4601', 'y', '4569', '4577', 'Q', '6455', 'o', 'T', '1461', 'I', '8483', 'R', 'k', 'C', 'Z', '9305', '9151', 'O', 'Q', '8177', 'A', 'H', 'i']

6797, 16, 9041, 12, 5, 26, 21, 8, 1239, 479, 8463, 3179, 119, 1, 9307, 5, 4601, 25, 4569, 4577, 17, 6455, 15, 20, 1461, 9, 8483, 18, 11, 3, 26, 9305, 9151, 15, 17, 8177, 1, 8, 9