D12121323331322331311132313132313233313233313331313111122112231   >>    D1212132333132233131113231313231323331323331333131311112211223   <<    D12121323331322331311132313132313233313233313331313111122112233   >>      D12121323331322331311132313132313233313233313331313111122112232   >>