#include <bits/stdc++.h> using namespace std; int main() { int n; cin>>n; int a[n]; int b[n]; for(int i = 0;i < n;i++) { cin>>a[i]>>b[i]; } sort(a,a + n); int min = a[n - 1]; int Min = b[0]; for(int i = 0;i < n;i++) { if(b[i] >= min && b[i] <= Min) { Min = b[i]; } } cout<<"["<<min<<","<<Min<<"]"<<endl; return 0; }