C12313211232233312111111312111133133313331333132232233122211313331   >>    C1231321123223331211111131211113313331333133313223223312221131333   <<    C12313211232233312111111312111133133313331333132232233122211313333   >>      C12313211232233312111111312111133133313331333132232233122211313332   >>