Task: Program Execution
Input (English): K 6611 O K 7133 8933 1575 9011 z U C 8807 4101 Z f w l l 8801 1749 u O 1459 D 6099 P v 7011 9921 o 5609 l p g u
Output (English): 2, 5, 6, 7, 8, 12, 13, 19, 20, 23, 25, 28, 29, 31