Task: Program Execution
Input (English): 7895 f N 6333 8609 B e 9543 7505 l 4195 Y 5049 8657 4129 7429 e 2289 u 4581 G R G M 8647 5355 1431 3171 n H E
Output (English): 2, 3, 6, 7, 10, 12, 17, 19, 21, 22, 23, 24, 29, 30, 31