D12121323331313331313123231313231323132313233313331323223313132233221   >>    D1212132333131333131312323131323132313231323331333132322331313223322   <<    D12121323331313331313123231313231323132313233313331323223313132233223   >>      D12121323331313331313123231313231323132313233313331323223313132233222   >>