Task: Program Execution
Input (English): 2049 7657 j m 6743 t 5753 8549 8215 4173 3807 T 7217 3375 6801 M 3015 k C 9437 9657 U J w 1459 w
Output (English): 1, 2, 5, 7, 8, 9, 10, 11, 13, 14, 15, 17, 20, 21, 25