func_code_string: #include <bits/stdc++.h>   using namespace std;   int n;   int a[1000];   bool ok = false;   int main() {     ios_base::sync_with_stdio(0);     cin >> n;     for (int i = 0; i < n; i++) cin >> a[i];     int sum = 0;     for (int i = 0; i < n; i++) sum += a[i];     int m;     cin >> m;     int l, r;     for (int i = 0; i < m; i++) {       cin >> l >> r;       if (sum >= l && sum <= r) {         cout << sum << endl;         exit(0);       }       if (sum < l) cout << l << endl, exit(0);     }     cout << -1 << endl;     return 0;   }   