C12321323221323323132313231313231323132213231323132313221211
  >>
   C1232132322132332313231323131323132313221323132313231322121
  <<
   C12321323221323323132313231313231323132213231323132313221213
  >>
 
 
 C12321323221323323132313231313231323132213231323132313221212
  >>