Task: Program Execution
Input (English): 2827 P S 5555 x 2709 P u 7345 4975 6937 5129 W a Y 899 l D F 6449 F d l 3631 E I 9093 y
Output (English): 2, 3, 5, 7, 8, 13, 14, 15, 17, 18, 19, 21, 22, 23, 25, 26, 28