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: ['h', 'a', '5179', '163', '2869', '3911', 'N', 'w', 'g', 'G', 'A', 'p', '3913', 'd', '911', 'Y', '9795', '3719', '1913', '9399', '4771', '1677', 'l', 'M', 'z', 'P', 'U']

8, 1, 5179, 163, 2869, 3911, 14, 23, 7, 7, 1, 16, 3913, 4, 911, 25, 9795, 3719, 1913, 9399, 4771, 1677, 12, 13, 26, 16, 21