Task: Program Execution
Input (English): 2521 u m 4081 F b 1579 3385 z E t U n 8633 C Q K O 885 Q 1997 8521 J 3873 5397 4235 S W 9173 u e 2637 9951
Output (English): 2521, 21, 13, 4081, 6, 2, 1579, 3385, 26, 5, 20, 21, 14, 8633, 3, 17, 11, 15, 885, 17, 1997, 8521, 10, 3873, 5397, 4235, 19, 23, 9173, 21, 5, 2637, 9951