C++ program to find sum of Natural numbers

/*this program find sum of
 natural numbers upto the range entered by user*/
#include <iostream>
using namespace std;

int main()
 {
 int sumStore=0,i,Srange,Erange;
 cout<<"Enter start range ";
 cin>>Srange;
 cout<<"Enter End range ";
 cin>>Erange;
 for(i=Srange;i<=Erange;i++)
   {
      sumStore=sumStore+i;
   }

 cout<<"\nSum of Natural numbers from "<<Srange<<" to "<<Erange<<" is= "<<sumStore;
 cout<<endl;
 return 0;
}