Task: Program Execution
Input (English): 4175 2151 u 7745 5349 4635 7211 4771 W 7733 D 7211 6423 4449 V M e y O 5209 7493 Q l c 4235 V z u 7691 5173 1471 q j o
Output (English): 3, 9, 11, 15, 16, 17, 18, 19, 22, 23, 24, 26, 27, 28, 32, 33, 34