C111123313121111121111331333133313331323132333132313233313231313223321   >>    C11112331312111112111133133313331333132313233313231323331323131322332   <<    C111123313121111121111331333133313331323132333132313233313231313223323   >>      C111123313121111121111331333133313331323132333132313233313231313223322   >>