Task: Program Execution
Input (English): 9011 1067 G 7819 2327 2807 R 927 4317 3705 x k U 8129 6023 r U 2735 Y 2463 7365 2891 2871 c 2905 R j 6881
Output (English): 1, 2, 4, 5, 6, 8, 9, 10, 14, 15, 18, 20, 21, 22, 23, 25, 28