#include<bits/stdc++.h>
using namespace std;
int main (){
long long n;
cin >> n;
vector <long long> v(n+1);
vector <long long> v1(n+1);
for (int i=1; i<=n; i++){
cin >> v[i];
for (int i=1; i<=n; i++){
cin >> v[1];
}
cout << v[1] + v[2];
}
}
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