C212212121213232233131313231323223313231313221323232211211
  >>
   C21221212121323223313131323132322331323131322132323221121
  <<
   C212212121213232233131313231323223313231313221323232211213
  >>
 
 
 C212212121213232233131313231323223313231313221323232211212
  >>