Task: Program Execution
Input (English): w C W 5967 l U 1549 973 V w n K u G 863 4863 Q 2415 213 8977 O f O 6459 9863 1597 9277 b 6233 v 5359 5843 l z c 2569 779 P r
Output (English): 4, 7, 8, 15, 16, 18, 19, 20, 24, 25, 26, 27, 29, 31, 32, 36, 37