Task: Program Execution
Input (English): 15, 23, ['Y', 'i', 'J', '9053', 'Q', 'G', 's', '403', 'j', 'G', 'z', 'E', '675', 'C', 'c', '2613', '475', '6599', '5099', 'x', '2599', 'b', 'H', '1423']
Output (English): Hb2599x509965994752613c