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: ['v', '2367', 'm', '3247', '2763', '2147', '4973', '7863', '4121', 'N', 'Q', '8179', 'U', 'W', 'p', '2549', '3489', 'R', '2811', 'a', 'J', '8691', '8861', '2579', '67']

22, 2367, 13, 3247, 2763, 2147, 4973, 7863, 4121, 14, 17, 8179, 21, 23, 16, 2549, 3489, 18, 2811, 1, 10, 8691, 8861, 2579, 67