C2212133313231331121111331333133313223313113313331333131133133313211232213121   >>    C221213331323133112111133133313331322331311331333133313113313331321123221312   <<    C2212133313231331121111331333133313223313113313331333131133133313211232213123   >>      C2212133313231331121111331333133313223313113313331333131133133313211232213122   >>