Task: Program Execution
Input (English): Z 671 a 7579 9569 E z F 8043 179 8851 i 1555 2109 6853 P r 3419 5641 7155 D 5669 n 7825 b K 5907 C
Output (English): 1, 3, 6, 7, 8, 12, 16, 17, 21, 23, 25, 26, 28