Task: Program Execution
Input (English): 12, 14, ['2003', '1293', 'G', '9567', 'X', '3347', '5445', '6771', 'z', 's', '8693', 'l', '8777', '1991', 'G', '2849', 'z', 'X', 'w']
Output (English): 19917778l