#include<iostream>
#include<cstring>
#include<queue>
#include<cstdio>
#include<algorithm>
#include<cmath>
using namespace std;
#define maxn 1010
#define INF 99999999
int main()
{
    int n;
    while(~scanf("%d",&n))
    {
        int t;
        while(n--)
        {
            int a[105];
            scanf("%d",&t);
            for(int i=0; i<t; i++)
                scanf("%d",&a[i]);
            sort(a,a+t);
            printf("%d\n",a[1]);
        }

    }
    return 0;
}