D121213233313223313132322231323132313331323132233132322331323311231   >>    D12121323331322331313232223132313231333132313223313232233132331123   <<    D121213233313223313132322231323132313331323132233132322331323311233   >>      D121213233313223313132322231323132313331323132233132322331323311232   >>