C111123313121111121111331333133313331333132232233133313211232333132311321   >>    C11112331312111112111133133313331333133313223223313331321123233313231132   <<    C111123313121111121111331333133313331333132232233133313211232333132311323   >>      C111123313121111121111331333133313331333132232233133313211232333132311322   >>