C11111333133313232233133313331333131133131331121111331313122321   >>    C1111133313331323223313331333133313113313133112111133131312232   <<    C11111333133313232233133313331333131133131331121111331313122323   >>      C11111333133313232233133313331333131133131331121111331313122322   >>