Task: Program Execution
Input (English): C 8513 7733 c u b K b r R C f 8317 7955 9987 M 6767 9609 2781 t 2919 1507 5711 u 8865 361 519 7339 S 3707 o 9823 5571 S U 2875
Output (English): 2, 3, 13, 14, 15, 17, 18, 19, 21, 22, 23, 25, 26, 27, 28, 30, 32, 33, 36