D231123132333132233131323223313231323132322113313233313232212311   >>    D23112313233313223313132322331323132313232211331323331323221231   <<    D231123132333132233131323223313231323132322113313233313232212313   >>      D231123132333132233131323223313231323132322113313233313232212312   >>