C111123313331323113313331333133313331323132311233132322122211
  >>
   C11112331333132311331333133313331333132313231123313232212221
  <<
   C111123313331323113313331333133313331323132311233132322122213
  >>
 
 
 C111123313331323113313331333133313331323132311233132322122212
  >>