Task: Program Execution
Input (English): 2811 Q 9449 O 4109 a u 4409 679 S 2605 j 6265 2661 2319 l 8839 D 3343 9589 843 q 8099 4341 b 1217 c p
Output (English): 1, 3, 5, 8, 9, 11, 13, 14, 15, 17, 19, 20, 21, 23, 24, 26