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: ['v', '7451', '1763', '2803', 'v', 'n', '4817', '1435', 'M', 'N', 'N', '5361', '4543', '4359', 'g', 'L', 'A', '6331', '7137', '809', 't', '9321', '6089', '5531', '3879', '7707']

22, 7451, 1763, 2803, 22, 14, 4817, 1435, 13, 14, 14, 5361, 4543, 4359, 7, 12, 1, 6331, 7137, 809, 20, 9321, 6089, 5531, 3879, 7707