Task: Program Execution
Input (English): A L 2055 m 7875 2907 t a n 9349 5829 1723 s 3487 353 K 4183 D 307 5957 c P 5655 7833 f 4213
Output (English): 3, 5, 6, 10, 11, 12, 14, 15, 17, 19, 20, 23, 24, 26