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: ['m', 'o', 'r', '5555', 'l', '4939', '6205', '8621', '4035', 'T', 't', '5135', '5349', '1475', '5925', '6079', 'Z', 'x', 's', 'm', 'J', 'X', 'q', '5107', '2417', 'C', 'd', 'n', 'h', 'T', '9591', 'k', 'O', 'z', '4959']

13, 15, 18, 5555, 12, 4939, 6205, 8621, 4035, 20, 20, 5135, 5349, 1475, 5925, 6079, 26, 24, 19, 13, 10, 24, 17, 5107, 2417, 3, 4, 14, 8, 20, 9591, 11, 15, 26, 4959