Task: Program Execution
Input (English): 21, 24, ['w', 'N', '7337', 'C', 'E', 'f', '153', 'D', 'N', 'w', '9727', 'n', '4233', 'h', 't', '99', 'u', '1985', 'B', 'q', '3877', 'u', '8607', 'u']
Output (English): u7068u7783