C11112331333132311331333133313331333132313311331333133313231313331312121
  >>
   C1111233133313231133133313331333133313231331133133313331323131333131212
  <<
   C11112331333132311331333133313331333132313311331333133313231313331312123
  >>
 
 
 C11112331333132311331333133313331333132313311331333133313231313331312122
  >>