#include<bits/stdc++.h>
using namespace std;
int main(){
int n;
cin>>n;
int a[n];
for(int i=0;i<n;i++){
cin>>a[i];
}
int b=0;
for(int i=0;i<n;i++){
if(a[i]>b){
b=a[i];
}
}
int c=0;
for(int i=0;i<n;i++){
if(a[i]<b && a[i]>c){
c=a[i];
}
}
cout<<c;
return 0;
}
I2luY2x1ZGU8Yml0cy9zdGRjKysuaD4KdXNpbmcgbmFtZXNwYWNlIHN0ZDsKaW50IG1haW4oKXsKCWludCBuOwoJY2luPj5uOwoJaW50IGFbbl07Cglmb3IoaW50IGk9MDtpPG47aSsrKXsKCQljaW4+PmFbaV07Cgl9CglpbnQgYj0wOwoJZm9yKGludCBpPTA7aTxuO2krKyl7CgkJaWYoYVtpXT5iKXsKCQkJYj1hW2ldOwoJCX0KCX0KCWludCBjPTA7Cglmb3IoaW50IGk9MDtpPG47aSsrKXsKCQlpZihhW2ldPGIgJiYgYVtpXT5jKXsKCQkJYz1hW2ldOwoJCX0KCX0KCWNvdXQ8PGM7CglyZXR1cm4gMDsKfQ==