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: ['d', 't', 'D', '7003', '8279', 'u', 'K', 'e', 'n', '7663', '6623', '5907', '5069', 'N', 'Q', '3955', 'W', 'o', '2777', 'h', '1881', '8187', 'j', 'D', 't', '6025', '8665', 'b', '4205', '7125', 'z', '5457', 't', 'V', 'V', 'a']

4, 20, 4, 7003, 8279, 21, 11, 5, 14, 7663, 6623, 5907, 5069, 14, 17, 3955, 23, 15, 2777, 8, 1881, 8187, 10, 4, 20, 6025, 8665, 2, 4205, 7125, 26, 5457, 20, 22, 22, 1