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.

['P', '4337', 'q', '9481', '7859', 'E', '1813', '2611', '1647', 'X', '4807', '253', '3465', 'o', 'p', 'z', 'K', 'z', 'P', 'l', 'Z', '5635', '7601', 'u', 'e', '2255', 'v', '6357', 'S']
16, 4337, 17, 9481, 7859, 5, 1813, 2611, 1647, 24, 4807, 253, 3465, 15, 16, 26, 11, 26, 16, 12, 26, 5635, 7601, 21, 5, 2255, 22, 6357, 19

['n', '9127', 'k', '9641', 'h', '6137', 's', 'E', 'N', 'D', 's', 'Y', '9669', 'Z', 'c', '3553', '2105', '4519', '1969', '1545', 'f', 'v', '4571', 'S', 'O', 'd', 'r', 'I', 'I', '2105']
14, 9127, 11, 9641, 8, 6137, 19, 5, 14, 4, 19, 25, 9669, 26, 3, 3553, 2105, 4519, 1969, 1545, 6, 22, 4571, 19, 15, 4, 18, 9, 9, 2105

['L', '6021', 'C', 'P', 't', 'b', '915', '8343', '4223', '4289', 'A', '1081', 'a', '7729', 'n', '7989', 'f', 'n', '6229', '7477', '4317', '9753', 't', 'G', '2857', '1903', 't', '3581', '3373', '5115', '3057', '1025', '2457', '8493', '2419', 'h', 'r', 'k']

12, 6021, 3, 16, 20, 2, 915, 8343, 4223, 4289, 1, 1081, 1, 7729, 14, 7989, 6, 14, 6229, 7477, 4317, 9753, 20, 7, 2857, 1903, 20, 3581, 3373, 5115, 3057, 1025, 2457, 8493, 2419, 8, 18, 11