/*
#include<stdio.h>
#include<math.h>
#define nmax 100002
struct point
{
    int x,y;
};
int n;
point v[nmax];
double min=1000000000.0;

double dist(point p1, point p2)
{
    return sqrt((double)((long long)((long long)p1.x-p2.x)*(p1.x-p2.x)+(long long)((long long)p1.y-p2.y)*(p1.y-p2.y)));
}

int main()
{
    freopen("cmap.in","r",stdin);
    freopen("cmap.out","w",stdout);
    scanf("%d",&n);
    int i,j,ci,cj;
    double d;
    for(i=1;i<=n;i++)
        scanf("%d%d",&v[i].x,&v[i].y);
    for(i=1;i<n;i++)
        for(j=i+1;j<=n;j++)
        {
            d=dist(v[i],v[j]);
            if(d<min)
            {
                ci=i;
                cj=j;
                min=d;
            }
        }
    printf("%lf\n",min);
//  printf("%lf\n(%d %d) (%d %d)",dist(v[ci],v[cj]),v[ci].x,v[ci].y,v[cj].x,v[cj].y);
    return 0;
}
*/
#include <stdio.h>
#include <fstream>
#include <math.h>
using namespace std;
ifstream fin("cmap.in");
ofstream fout("cmap.out");
//FILE * fin, *fout;
long long x[100000],y[100000];
int n;
long long minim=1000000000;
int main()
{
    //fin = fopen("cmap.in","rt");
    //fout = fopen("cmap.out","wt");
    fin>>n;
    //fscanf(fin,"%d",&n)
    for(int i=1;i<=n;i++)
    {
        int bufx,bufy;
        fin>>x[i]>>y[i];
        //fscanf(fin,"%d%d",&bufx,&bufy);
        //x[i] = bufx, y[i] = bufy;
    }
    for(int i=1;i<=n;i++)
    for(int j=i+1;j<=n;j++)
    {
        long long a=(x[i]-x[j])*(x[i]-x[j])+(y[i]-y[j])*(y[i]-y[j]);
        if(a<minim)
        minim=a;
    }
    fout.precision(20);
    fout<<sqrt((double)minim)<<endl;
    //fprintf(fout,"%fl",sqrt((double)minim));
    return 0;
}