Task: Program Execution
Input (English): 11, 21, ['J', 'g', 'K', '1863', '5511', '6655', 'Q', '8357', 'X', '3215', 'h', '6807', 'c', 'K', 'n', '4327', '8279', '9431', 't', 'f', '4999', '4045', '6041', 'M', '6843']
Output (English): 4999ft943182794327nKc6807h