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: ['7977', '8061', 'f', 'z', '5347', '7479', 'f', 'B', '1079', 'n', 'b', 'S', 'C', 'b', '8559', '829', '3095', '9821', 'B', '5401', '6247', '3309', '8923', '7993', '4267', '9843', '1687', '289', 'F', 'q']

7977, 8061, 6, 26, 5347, 7479, 6, 2, 1079, 14, 2, 19, 3, 2, 8559, 829, 3095, 9821, 2, 5401, 6247, 3309, 8923, 7993, 4267, 9843, 1687, 289, 6, 17