Input (grade 12): Interstate 12 (I-12) is an intrastate Interstate Highway located entirely within the state of Louisiana. I-12 starts in Baton Rouge at Interstate 10, and travels along the North Shore of Lake Pontchartrain before ending at the intersection of Interstate 10 and Interstate 59 near Slidell.
Output (grade 8): Interstate 12 is a 85.59 m long Interstate Highway in Louisiana, connecting Interstate 10 at each end.