C12313211232233312111111312111133133313331323221312132221311121211   >>    C1231321123223331211111131211113313331333132322131213222131112121   <<    C12313211232233312111111312111133133313331323221312132221311121213   >>      C12313211232233312111111312111133133313331323221312132221311121212   >>