C3213322333133313113313221211113313331333131131233232212223223321   >>    C321332233313331311331322121111331333133313113123323221222322332   <<    C3213322333133313113313221211113313331333131131233232212223223323   >>      C3213322333133313113313221211113313331333131131233232212223223322   >>