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: ['s', '6031', 'r', '2897', 'l', '9683', 'U', 'v', 'a', '7663', 'd', '3225', 'o', 'T', '2485', 'R', 'b', 'I', 'G', '1511', 'L', '5537', 'g', '6349', '4381', 'g', '4231', 'v', 'z', 'i', 't', 'n']

19, 6031, 18, 2897, 12, 9683, 21, 22, 1, 7663, 4, 3225, 15, 20, 2485, 18, 2, 9, 7, 1511, 12, 5537, 7, 6349, 4381, 7, 4231, 22, 26, 9, 20, 14