Task: Program Execution
Input (English): 5, 5, ['q', 'r', 'O', 'S', 'U', '6979', '6673', '4725', '5583', '7449', 'm', '1413', '9099', 'c', 'C', '4681', '7703', '1721', 'o', 'E', 'y', 'v']
Output (English): U