Task: Program Execution
Input (English): 4141 9535 149 r t 8765 W M 5135 739 4285 g n 2485 P s 4565 U d 1205 V l 1775 B x u A U
Output (English): 4, 5, 7, 8, 12, 13, 15, 16, 18, 19, 21, 22, 24, 25, 26, 27, 28