Task: Program Execution
Input (English): 11, ['x', 'U', '2509', 'X', '565', 'Z', '9015', 'V', 'o', '3417', 'B', '8891', '7867', '1451', 'P', 'l', 'Z', '5789', '8051', '73', '9915', '5909', 'r', 'G', '7983', 'O', 'n', 'i', 'B', 'l', '2919', '6899']
Output (English): x, 8891, r