#45812: cpp 超級簡單解
1121232@stu.wghs.tp.edu.tw
(Ian911436)
#include <bits/stdc++.h>
using namespace std;
int main() {
int a, b, c, d, e;
cin >> a >> b >> c >> d >> e;
int sum = b + c + d + e;
if(a >= sum){
cout << sum;
}
else{
cout << "-1";
}
return 0;
}