C12313211232233312111111312111133133313331333112331311311213321321323321   >>    C1231321123223331211111131211113313331333133311233131131121332132132332   <<    C12313211232233312111111312111133133313331333112331311311213321321323323   >>      C12313211232233312111111312111133133313331333112331311311213321321323322   >>