Input (grade 10): Khan Tokhtamysh of the Golden Horde overruns Moscow, as punishment for Grand Prince Dmitri Donskoi's resistance to Khan Mamai of the Blue Horde in the 1370s.
Output (grade 10): Khan Tokhtamysh of the Golden Horde, overruns Moscow as punishment for Grand Prince Dmitri Donskois resistance to Khan Mamai of the Blue Horde in the 1370s.