Task: Program Execution
Input (English): 3, 23, ['C', 's', 'j', 'P', 'O', '6289', 'U', '1031', 'c', 'b', '8547', 'b', '9001', '7117', '7107', 'g', '6091', '7525', '7209', '2819', 'f', 'z', '4449', 'N', '4849']
Output (English): jPO6289U1031cb8547b900171177107g6091752572092819fz4449