Input (grade 12): PokÃ mon Mystery Dungeon: Explorers of Time and PokÃ mon Mystery Dungeon: Explorers of Darkness are a matched pair of PokÃ mon games for the Nintendo DS.
Output (grade 11): A sequel to the two games were made in 2007 for the Nintendo DS titled PokÃ mon Mystery Dungeon: Explorers of Time and Explorers of Darkness.