C123132112322333121111113121111331333133313231333133311223323211211231313221   >>    C12313211232233312111111312111133133313331323133313331122332321121123131322   <<    C123132112322333121111113121111331333133313231333133311223323211211231313223   >>      C123132112322333121111113121111331333133313231333133311223323211211231313222   >>