Task: Program Execution
Input (English): e 2973 1869 5059 J 309 1227 B 9263 W u g Q q F P O 5647 3197 4717 H 7171 R 4393 j H 9295 m 9885
Output (English): 2, 3, 4, 6, 7, 9, 18, 19, 20, 22, 24, 27, 29