Task: Program Execution
Input (English): 2063 r S 7173 4893 b 9063 7367 f 9737 6149 Q Q 53 a s 9623 491 6639 3413 J 273 i K I C y 7583
Output (English): 1, 4, 5, 7, 8, 10, 11, 14, 17, 18, 19, 20, 22, 28