Task: Program Execution
Input (English): Y 8643 7819 S u 6149 f 3667 i 1661 7417 d g t 9135 A 7089 q h X a 6439 D S N 2137 5633
Output (English): 2, 3, 6, 8, 10, 11, 15, 17, 22, 26, 27