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: ['1091', '1539', 't', 'K', 'N', '939', '8301', 'O', 'p', 'I', 'f', '7807', '4431', 'v', '2233', 'Z', 'h', '9127', '6497', '8665', '175', 'f', 'B', '6665', '8381', '3611', 'V']

1091, 1539, 20, 11, 14, 939, 8301, 15, 16, 9, 6, 7807, 4431, 22, 2233, 26, 8, 9127, 6497, 8665, 175, 6, 2, 6665, 8381, 3611, 22