D12121323331322331311132313132313233313233313331313232123313233313133112231   >>    D1212132333132233131113231313231323331323331333131323212331323331313311223   <<    D12121323331322331311132313132313233313233313331313232123313233313133112233   >>      D12121323331322331311132313132313233313233313331313232123313233313133112232   >>