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: ['4583', '1769', '2889', '841', '1901', '7631', 'b', '4653', 'V', '1897', '7763', 's', 'e', 'T', 'w', 'P', 'F', '3289', 'J', 'G', '6231', 'Z', '5571', '4835', '7283', 'U', 'e', 'z', '5417', '2471', '2665', '3113', 'Q', 'H']

4583, 1769, 2889, 841, 1901, 7631, 2, 4653, 22, 1897, 7763, 19, 5, 20, 23, 16, 6, 3289, 10, 7, 6231, 26, 5571, 4835, 7283, 21, 5, 26, 5417, 2471, 2665, 3113, 17, 8