#include "stdio.h"
#include "string.h"
#include "math.h"
int main()
{
int h, m, s, t, n, i,len,temp,j,k,min,min2,make;
int a[100];
scanf("%d",&t);
while (t--)
{
scanf("%d",&n);
min=100;
for (i=0;i<n;i++)
{
scanf("%d",&a[i]);
if(a[i]<min) min=a[i];
}
min2=100;make=0;
for (i=0;i<n;i++)
{
if(a[i]==min&&make==0) {i++;make=1;}
if(a[i]<min2) min2=a[i];
}
printf("%d/n",min2);
}
return 0;
}