Task: Program Execution
Input (English): 5769 U 8581 5977 7613 8401 3797 l 6847 q O g E X 689 A Y P o 965 815 277 3963 4243 c R u k k m b K 5023
Output (English): 1, 3, 4, 5, 6, 7, 9, 15, 20, 21, 22, 23, 24, 33