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: ['5843', '1159', '5265', '8137', 'F', 'T', '6137', '979', '701', 'f', 'J', 'R', '1255', '5399', 'K', 'R', '8599', 'M', '6433', 'V', '8767', 'J', '7763', '8225', '4569', '4969', '6757', '6377', '3227', '7423', 'w']

5843, 1159, 5265, 8137, 6, 20, 6137, 979, 701, 6, 10, 18, 1255, 5399, 11, 18, 8599, 13, 6433, 22, 8767, 10, 7763, 8225, 4569, 4969, 6757, 6377, 3227, 7423, 23