Task: Program Execution
Input (English): 12, 15, ['n', '5149', 't', '9007', '5867', '5319', '8167', '5867', '4617', '353', 'I', '9915', '5999', 'p', '417', 'X', '5097', '6699', 'U', 'A']
Output (English): 99155999p417