C12313211232233312111111312111133133313331323221312132233222313121   >>    C1231321123223331211111131211113313331333132322131213223322231312   <<    C12313211232233312111111312111133133313331323221312132233222313123   >>      C12313211232233312111111312111133133313331323221312132233222313122   >>