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: ['d', '5693', '7967', 'N', '3355', '4807', 'm', 'E', '633', '5407', 'a', 'g', '521', 'l', 'U', '7457', '1089', 'G', 'M', '5543', '6159', '3325', '7217']

4, 5693, 7967, 14, 3355, 4807, 13, 5, 633, 5407, 1, 7, 521, 12, 21, 7457, 1089, 7, 13, 5543, 6159, 3325, 7217