Task: Program Execution
Input (English): 2155 4985 1757 z w 5921 8551 b 2725 5409 m 6005 9497 9045 S 437 8401 A 4771 i 7373 r M 391 9015 P s
Output (English): 1, 2, 3, 6, 7, 9, 10, 12, 13, 14, 16, 17, 19, 21, 24, 25