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', 'M', 'Z', 'd', '7245', '4567', 'i', '5837', '5325', 'x', 'S', '3185', '3803', '5635', 'W', 'l', 'R', '7911', '831', 'e', '8005', '6885', '3459', 'u', 'D', '3859', '7523', '7077', '8783', 'A', '3415', '5389', '6059', '6725']

19, 13, 26, 4, 7245, 4567, 9, 5837, 5325, 24, 19, 3185, 3803, 5635, 23, 12, 18, 7911, 831, 5, 8005, 6885, 3459, 21, 4, 3859, 7523, 7077, 8783, 1, 3415, 5389, 6059, 6725