View Code of Problem 112

#include<iostream>
using namespace std;
int main(){
	int n;
	while(cin>>n){
		if(n==0){
			break;
		}
		long long sum=0;
		long long a;
		for(int i=0;i<n;i++){
			cin>>a;
			sum+=a;
		}
		cout<<sum<<endl;
	}
}