Task: Program Execution
Input (English): 9, 21, ['x', '1313', '6919', 'h', 'l', 'o', '3119', '9413', '6017', '7425', '4599', 'H', '4783', 'H', '7763', '2973', '3383', '5209', 'l', 'b', '9497', '2023', '2139', '9755', '1899']
Output (English): 601774254599H4783H7763297333835209lb9497