C11231323321111331312111133133313331323132313331323221132211
  >>
   C1123132332111133131211113313331333132313231333132322113221
  <<
   C11231323321111331312111133133313331323132313331323221132213
  >>
 
 
 C11231323321111331312111133133313331323132313331323221132212
  >>