Input (grade 7): Louis the Stammerer (1 November 846 â "10 April 879) was the King of Aquitaine and later King of West Francia. He was the eldest son of Charles the Bald and Ermentrude of OrlÃ ans.
Output (grade 9): Louis the Stammerer (November 1, 846 â "April 10, 879;), was the oldest son of Charles the Bald and Ermentrude of OrlÃ ans.