Task: Program Execution
Input (English): 4, 16, ['4925', 'J', 'J', '6279', '3121', 'U', '45', '355', 'B', '7267', 'x', 'C', '2513', '5261', '8159', '7415']
Output (English): 5147951816253152Cx7627B55354U12139726