Task: Program Execution
Input (English): 7, 21, ['2547', 'y', '8589', 'A', 'z', '3865', 'j', '8093', '6299', '4147', '1221', 'A', 'F', '2645', '1789', '1301', 'F', 'o', 'b', 'G', '441']
Output (English): 144GboF103198715462FA1221741499263908j