Task: Program Execution
Input (English): b 7563 6669 8897 j 6651 6927 U M h 5037 m P 1411 f 7023 Z 4279 1909 3287 S j U 6583 Y 5171 3417
Output (English): 2, 3, 4, 6, 7, 11, 14, 16, 18, 19, 20, 24, 26, 27