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: ['K', 'U', '2319', '3941', '183', '5351', 'F', '6081', 'Z', 'G', 'j', 'c', '8693', 'A', 'M', '5089', 'v', '8601', '1517', '7821', 'u', 'N', 'B', 'D', '2145', '8555', '1563', '4059', 'E']

11, 21, 2319, 3941, 183, 5351, 6, 6081, 26, 7, 10, 3, 8693, 1, 13, 5089, 22, 8601, 1517, 7821, 21, 14, 2, 4, 2145, 8555, 1563, 4059, 5