import java.io.*;

class SidedWallData extends WallData {
        protected int side; //dir party must face to see special directly
                                                                         
        public SidedWallData(int sde) {
                super();
                side = sde;
        }

        public void save(ObjectOutputStream so) throws IOException {
                super.save(so);
                so.writeInt(side);
        }
}