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: ['5243', 'V', '7623', '5201', '3551', '4323']

5243, 22, 7623, 5201, 3551, 4323