C13112133313331323321333133313331333133313331333133313211231223213221221
  >>
   C1311213331333132332133313331333133313331333133313331321123122321322122
  <<
   C13112133313331323321333133313331333133313331333133313211231223213221223
  >>
 
 
 C13112133313331323321333133313331333133313331333133313211231223213221222
  >>