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', '2233', '1315', 'm', '2209', '423', '3945', 'F', '9501', 'o', '6603', 'e', '8491', 'A', 'Y', 'E', 'd', '5041', '2267', 'R', '1133', '233', '6583', '8577', 'O', 't', '3659', '9253', '1627', '2215', '7405', '9817', '1811', '1795', '7419', '9475']

25, 2233, 1315, 13, 2209, 423, 3945, 6, 9501, 15, 6603, 5, 8491, 1, 25, 5, 4, 5041, 2267, 18, 1133, 233, 6583, 8577, 15, 20, 3659, 9253, 1627, 2215, 7405, 9817, 1811, 1795, 7419, 9475