C312312111111331312111133133313121111133313113313223331333132313232232321   >>    C31231211111133131211113313331312111113331311331322333133313231323223232   <<    C312312111111331312111133133313121111133313113313223331333132313232232323   >>      C312312111111331312111133133313121111133313113313223331333132313232232322   >>