D331212121133132233131323223313233313233313223313233313133311211   >>    D33121212113313223313132322331323331323331322331323331313331121   <<    D331212121133132233131323223313233313233313223313233313133311213   >>      D331212121133132233131323223313233313233313223313233313133311212   >>