C11112331333132311331333133313331333132313121111113313232213221
  >>
   C1111233133313231133133313331333133313231312111111331323221322
  <<
   C11112331333132311331333133313331333132313121111113313232213223
  >>
 
 
 C11112331333132311331333133313331333132313121111113313232213222
  >>