The above diagram shows 4 island countries in the Marina Ocean. According to the scale, each line segment represents a distance of 200 miles. The capital of each island country is marked with a star.
A group of students decide to fly a remote control plane from one island to another island as an experiment. The plane will be launched from the capital of Yellow Island and it will head due east. The plane is supposed to fly at least 1,000 miles but runs out of fuel at 600 miles. Where does the plane land?