C123132112322333121111113121111331333133313231333133311223323211231222321123231   >>    C12313211232233312111111312111133133313331323133313331122332321123122232112323   <<    C123132112322333121111113121111331333133313231333133311223323211231222321123233   >>      C123132112322333121111113121111331333133313231333133311223323211231222321123232   >>