C123132112322333121111113121111331333133313231333232323221213112331321   >>    C12313211232233312111111312111133133313331323133323232322121311233132   <<    C123132112322333121111113121111331333133313231333232323221213112331323   >>      C123132112322333121111113121111331333133313231333232323221213112331322   >>