C12313211232233312111111312111133133313331323133313331122332321223113332231   >>    C1231321123223331211111131211113313331333132313331333112233232122311333223   <<    C12313211232233312111111312111133133313331323133313331122332321223113332233   >>      C12313211232233312111111312111133133313331323133313331122332321223113332232   >>