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: ['631', '7273', '5533', 'V', 'v', '2545', 'v', 'Z', 'J', 'R', '1643', '1453', '8109', '6819', 'U', '3733', '9295', '1593', '3897', '2635', '7', 'S', '2927', 'L', '801', '3181', '6915', '845', 'u', '6649', 'k']

631, 7273, 5533, 22, 22, 2545, 22, 26, 10, 18, 1643, 1453, 8109, 6819, 21, 3733, 9295, 1593, 3897, 2635, 7, 19, 2927, 12, 801, 3181, 6915, 845, 21, 6649, 11