C1111233133313231133133313231333133313232112323131331211
  >>
   C111123313331323113313331323133313331323211232313133121
  <<
   C1111233133313231133133313231333133313232112323131331213
  >>
 
 
 C1111233133313231133133313231333133313232112323131331212
  >>