Task: Program Execution
Input (English): D 6579 w X Q e d 8099 r k V S y 259 u h t k 3907 9823 4987 2081 a Y z 591 x G 857 x 4307 M U
Output (English): 4, 6579, 23, 24, 17, 5, 4, 8099, 18, 11, 22, 19, 25, 259, 21, 8, 20, 11, 3907, 9823, 4987, 2081, 1, 25, 26, 591, 24, 7, 857, 24, 4307, 13, 21