Task: Program Execution
Input (English): 1897 2787 t x z z 6295 u c 3809 i 2897 S 8735 8599 823 7603 b N m O 2425 1179 2471 2819 M 2763 F F 9235
Output (English): 3, 4, 5, 6, 8, 9, 11, 13, 18, 19, 20, 21, 26, 28, 29