C11111333133313232233133313331333133313233231331121111331333112233213321   >>    C1111133313331323223313331333133313331323323133112111133133311223321332   <<    C11111333133313232233133313331333133313233231331121111331333112233213323   >>      C11111333133313232233133313331333133313233231331121111331333112233213322   >>