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: ['6901', 'I', 'h', '3041', 'q', 'E', 'L', '4255', 'u', 'Y', '1935', '9719', '4339', 'Z', '6545', 'Z', 'Z', 'Y', 'z', 'B', 'h', '2301', 'g', 'A', 'D', 'z', 'C', 'S', 'x']

6901, 9, 8, 3041, 17, 5, 12, 4255, 21, 25, 1935, 9719, 4339, 26, 6545, 26, 26, 25, 26, 2, 8, 2301, 7, 1, 4, 26, 3, 19, 24