D1212121212131323223313233231323331313231333131323211331323132322132333131   >>    D121212121213132322331323323132333131323133313132321133132313232213233313   <<    D1212121212131323223313233231323331313231333131323211331323132322132333133   >>      D1212121212131323223313233231323331313231333131323211331323132322132333132   >>