Task: Program Execution
Input (English): 4, 8, ['1841', 'x', 'A', '789', '2169', '115', '2729', 'c', 'A', '5035', '2103', 'R', 'O', '1801', '3093', 'P', '121', '5079', '4907', '6895', 'V']
Output (English): c27291152169789