#include<bits/stdc++.h>
using namespace std;
using ll=long long;

int a[200001];

void solve() {
	int n;cin>>n;
	ll ans=0;
	for(int i=1;i<=n;++i) {
		ll x;cin>>x;
		ans+=x;
	}
	cout<<ans;
}
 
int main() {
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	int _;_=1;
	while(_--) solve();
	return 0;
}