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.

['4017', 'W', 'R', '2055', '3361', '9725', 'N', 'k', '5121', '8929']
4017, 23, 18, 2055, 3361, 9725, 14, 11, 5121, 8929

['2621', '8811', '3613', '7469', 'O', 'P', '3429', '6091', 'l', '6905', '8189', '8933', 'l', '1745', 'c', 'a', '8665', '9733', '8263', 'X', '5065', 'W', '1837', 'K', 'k', '519', '7623']
2621, 8811, 3613, 7469, 15, 16, 3429, 6091, 12, 6905, 8189, 8933, 12, 1745, 3, 1, 8665, 9733, 8263, 24, 5065, 23, 1837, 11, 11, 519, 7623

['V', '8817', 'f', 'r', '1287', '411', '1437', 'E', 'T', 'S', '3927', 's', '6147', '4347', 's', 'z', 'X', '7809']

22, 8817, 6, 18, 1287, 411, 1437, 5, 20, 19, 3927, 19, 6147, 4347, 19, 26, 24, 7809