Task: Program Execution
Input (English): 2257 f P o x 1877 x 2277 t 4907 881 7421 S 237 1539 l 1581 1911 B K b g l 243 1475 665 l
Output (English): 2257, 1877, 2277, 4907, 881, 7421, 237, 1539, 1581, 1911, 243, 1475, 665