C123132112322333121111113121111331333133313231333231323233221323213221   >>    C12313211232233312111111312111133133313331323133323132323322132321322   <<    C123132112322333121111113121111331333133313231333231323233221323213223   >>      C123132112322333121111113121111331333133313231333231323233221323213222   >>