D121213233313223313132322231323132313331323132233132313132313332211   >>    D12121323331322331313232223132313231333132313223313231313231333221   <<    D121213233313223313132322231323132313331323132233132313132313332213   >>      D121213233313223313132322231323132313331323132233132313132313332212   >>