#include "iostream" #include "vector" #include "algorithm" #include "unordered_set" #include "set" #include "unordered_map" #include "cstdio" #include "queue" #include "algorithm" #include "climits" #include "map" #include "stack" #include "cstring" #include "climits" using namespace std; #define ll long long #define mod 1000000007 void swap(int &a,int &b){     int c=a;     a=b;     b=c; } int main(){     int n;     cin>>n;     vector<int> a(n);     for(int i=0;i<n;i++)cin>>a[i];     int x=a[0],y=a[1];     if(x<y)swap(x,y);     for(int i=2;i<n;i++){         if(a[i]<=y)continue;         y=a[i];         if(x<y)swap(x,y);     }     cout<<y<<endl;     return 0; }