Task: Program Execution
Input (English): C 887 1659 S U 8037 9061 D q 6933 4083 v J g C 6619 e 3487 v c Z 7291 9801 3807 L
Output (English): 1, 4, 5, 8, 9, 12, 13, 14, 15, 17, 19, 20, 21, 25