C123132112322333121111113121111331333133313231333112331113221223231   >>    C12313211232233312111111312111133133313331323133311233111322122323   <<    C123132112322333121111113121111331333133313231333112331113221223233   >>      C123132112322333121111113121111331333133313231333112331113221223232   >>