Task: Program Execution
Input (English): 8, 17, ['831', '7851', '2427', '3657', 'd', 'x', 'k', '2969', 'Q', 'b', '1217', '4903', '1623', '5533', '2353', '1369', 'U', 'H']
Output (English): U963135323355326130947121bQ9692