Task: Program Execution
Input (English): 9, 12, ['3037', 'u', 'o', 'O', 'D', '4101', '3403', '2219', '1563', '2001', 'X', 'M', '7637', '181', 'A', '6795', '15', '9849', 'x', '9967', 'N', 'q']
Output (English): M, X, 2001, 1563