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', 'F', 'W', '3145', '191', 'T', 'p', '257', 'I', '927', 'h', '8803', 'r', '8359', '1561', 'R', '3035']

8, 6, 23, 3145, 191, 20, 16, 257, 9, 927, 8, 8803, 18, 8359, 1561, 18, 3035