#include<stdio.h>
int main()
{
int i,n ,max;
int a[100];
while(scanf("%d",&n)!=EOF)
{
for(i=0;i<n;i++){
scanf("%d",&a[i]);
max=a[0];}
for(i=0;i<n;i++){
if(max>=a[i])
{max=max;}
else
{max=a[i];}
}
printf("%d\n",max);
}
return 0;
}