Números a días

#include<iostream>
using namespace std;
int main(){
int dia;

do{
cout<<"Ingrese numero"<<endl;
cin>>dia;
}while(dia<1 || dia>7);

switch(dia){
case 1:
cout<<"LUNES"<<endl;
break;
case 2:
cout<<"MARTES"<<endl;
break;
case 3:
cout<<"MIERCOLES"<<endl;
break;
case 4:
cout<<"JUEVES"<<endl;
break;
case 5:
cout<<"VIERNES"<<endl;
break;
case 6:
cout<<"SABADO"<<endl;
break;
case 7:
cout<<"DOMINGO"<<endl;
break;
}
return 0;


}