SELECT Restaurant.ResName ,  sum(Visits_Restaurant.Spent) FROM Visits_Restaurant JOIN Restaurant ON Visits_Restaurant.ResID = Restaurant.ResID GROUP BY Restaurant.ResID ORDER BY sum(Visits_Restaurant.Spent) ASC LIMIT 1;
At which restaurant did the students spend the least amount of time? List restaurant and the time students spent on in total.
[Schema (values) (types)]: | restaurant_1 |  Student : stuid (text) , lname (number) , fname (text) , age (text) , sex (number) , major (text) , advisor (number) , city_code (number) | Restaurant : resid (text) , resname (number) , address (text) , rating (text) | Type_Of_Restaurant : resid (text) , restypeid (number) | Restaurant_Type : restypeid (text) , restypename (number) , restypedescription (text) | Visits_Restaurant : stuid (text) , resid (number) , time (text) , spent (text);