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: ['6089', '1267', 'q', 'f', '9891', 'H', '3567', 'b', 'U', '3867', 'x', '2389', '7809', '3927', '7811', 'r', 'C', '9943', '4057', '6893', 'y', 'y', '2985', '9291', 'M', '5849', '6199', 'H', '2055', '6467', 'O', 'd', 'i', 'P', '5837', '5925', '6639', '9679', '4701']

6089, 1267, 17, 6, 9891, 8, 3567, 2, 21, 3867, 24, 2389, 7809, 3927, 7811, 18, 3, 9943, 4057, 6893, 25, 25, 2985, 9291, 13, 5849, 6199, 8, 2055, 6467, 15, 4, 9, 16, 5837, 5925, 6639, 9679, 4701