C3132121111133313233121111331333133313331322331333133313232233223331   >>    C313212111113331323312111133133313331333132233133313331323223322333   <<    C3132121111133313233121111331333133313331322331333133313232233223333   >>      C3132121111133313233121111331333133313331322331333133313232233223332   >>