C12313211232233312111111312111133133313331323321323332331113221   >>    C1231321123223331211111131211113313331333132332132333233111322   <<    C12313211232233312111111312111133133313331323321323332331113223   >>      C12313211232233312111111312111133133313331323321323332331113222   >>