Task: Program Execution
Input (English): 1, 5, ['1971', '7917', '2433', '5915', 'Q', '1289', '6763', '1691', '4411', 'p', '4499', '2491', 'z', 'b', 'u', '8115', '1961', 'B', 'u', 'Q', '3719']
Output (English): 1971, 7917, 2433, 5915, Q