B231123233313231323132233133313233313232233132313231323223331231
  >>
   B23112323331323132313223313331323331323223313231323132322333123
  <<
   B231123233313231323132233133313233313232233132313231323223331233
  >>
 
 
 B231123233313231323132233133313233313232233132313231323223331232
  >>