C111123313121111121111331333133313331333132233133313231331121221   >>    C11112331312111112111133133313331333133313223313331323133112122   <<    C111123313121111121111331333133313331333132233133313231331121223   >>      C111123313121111121111331333133313331333132233133313231331121222   >>