D12121323331313133313233313131313231323331322331311331323132333132232321   >>    D1212132333131313331323331313131323132333132233131133132313233313223232   <<    D12121323331313133313233313131313231323331322331311331323132333132232323   >>      D12121323331313133313233313131313231323331322331311331323132333132232322   >>