#include <cstdio>
#include <set>
using namespace std;
set<int> a;int n,x;
int main()
{
    freopen("input.txt","r",stdin);
    freopen("output.txt","w",stdout);
    scanf("%d",&n);
    for (int i=1;i<=n;i++){scanf("%d",x);a.insert(x);}
    printf("%d\n",*a.begin());
    return 0;
}