C11112331333132311331333133313331333132313311331333133313122211
  >>
   C1111233133313231133133313331333133313231331133133313331312221
  <<
   C11112331333132311331333133313331333132313311331333133313122213
  >>
 
 
 C11112331333132311331333133313331333132313311331333133313122212
  >>