Let's tell a joke

A warship is sailing at sea. One night, a sailor suddenly noticed a little light in the distance. He immediately reported to the captain: "tell the captain that a ship is coming towards us not far away." If we don't change our course, we will hit it! " Hearing this, the captain immediately shouted "Whoo! This is the captain, please move your ship and channel to the east immediately 10 degrees! The other party replied: "Hoo hoo! Please move west 10 degrees! Captain: I am a warship. Don't you dare ask me to move! " The other party immediately said, "Take the exam! I am a lighthouse. Why don't you fight if you can? 」