#include<queue>
#include<cstdio>
using namespace std;
priority_queue<int,vector<int>,greater<int> >qwq;
int main()
{
	int n,a;
	scanf("%d",&n);
	while(n--){
		scanf("%d",&a);
        qwq.push(a);
	}
	printf("%d",qwq.top());
    return 0;
}