D13133313221323331323331313113313233313231322331323223313132321   >>    D1313331322132333132333131311331323331323132233132322331313232   <<    D13133313221323331323331313113313233313231322331323223313132323   >>      D13133313221323331323331313113313233313231322331323223313132322   >>