Task: Program Execution
Input (English): V 3871 D v 6771 1219 9015 4553 5353 J 1967 E O x 1863 s G 4361 2321 1629 c 9647 9677 2685 t L 6589 x 9831 9689
Output (English): 1, 3, 4, 10, 12, 13, 14, 16, 17, 21, 25, 26, 28