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: ['2441', '2191', '7225', 't', 'Z', '1921', 'I', '9563', '5511', 'Q', 'B', '817', '4113', 'W', '7125', '1087', '8143', 'v', '4971', 'X']

2441, 2191, 7225, 20, 26, 1921, 9, 9563, 5511, 17, 2, 817, 4113, 23, 7125, 1087, 8143, 22, 4971, 24