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: ['U', 'V', '657', 'w', '1945', '6595', '9003', '661', 'S', 'l', 'Q', '4235', 'd', '457', '569', '7633', '6053', 'j', 'I', 'C', 'K', 'c', '1741', 'Y', '6473', '4615', '7281', '3251', '8047', '2225', '2127', '7665', '7505', '4905', '9211', 'j', 'N', 'b']

21, 22, 657, 23, 1945, 6595, 9003, 661, 19, 12, 17, 4235, 4, 457, 569, 7633, 6053, 10, 9, 3, 11, 3, 1741, 25, 6473, 4615, 7281, 3251, 8047, 2225, 2127, 7665, 7505, 4905, 9211, 10, 14, 2