func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, ans = 0;     cin >> n;     pair<int, int> arr[n];     for (int i = 0; i < n; i++) cin >> arr[i].first >> arr[i].second;     sort(arr, arr + n);     for (int i = 0; i < n; i++) {       if (arr[i].second >= ans) {         ans = arr[i].second;       } else {         ans = arr[i].first;       }     }     cout << ans;     return 0;   }   