B%EF%BF%BD%EF%BF%BD%EF%BF%BDn%20n%EF%BF%BD%EF%BF%BD%EF%BF%BD%EF%BF%BD%EF%BF%BDc,%20b%EF%BF%BD%EF%BF%BDnh%20n%EF%BF%BD%EF%BF%BDng%20l%EF%BF%BD%EF%BF%BD%EF%BF%BDnh tại Đống Đa