D121213233313223313132322231323132313331323132233132333131323123221   >>    D12121323331322331313232223132313231333132313223313233313132312322   <<    D121213233313223313132322231323132313331323132233132333131323123223   >>      D121213233313223313132322231323132313331323132233132333131323123222   >>