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: ['y', '5507', 'W', 'p', '9165', 'h', 's', '9031', 'i', '1491', '1919', 'B', 'A', '7093', '1781', 'G', '6001', 'g', '1465', '213', 'v', 'V', '9841', '4991', '395', 'Y', 'x', '7869', '1993', '6407', 'C', 'I', 'N', '3361', '9485']

25, 5507, 23, 16, 9165, 8, 19, 9031, 9, 1491, 1919, 2, 1, 7093, 1781, 7, 6001, 7, 1465, 213, 22, 22, 9841, 4991, 395, 25, 24, 7869, 1993, 6407, 3, 9, 14, 3361, 9485