Task: Program Execution
Input (English): 2, 5, ['9177', '5649', 'c', '4347', '4023', '1107', 'I', 'O', '5011', '5813', '3149', 'b', '5891', 's', 'O', '4463', 'T', 'r', 's']
Output (English): 40234347c5649