Task: Program Execution
Input (English): 1561 w 8789 7385 C I D M 55 p 2979 S 4669 p 5993 f Z 2249 8293 U j s 9187 5461 s 9661 C 5649 6387
Output (English): 2, 5, 6, 7, 8, 10, 12, 14, 16, 17, 20, 21, 22, 25, 27