#include <vector>
#include <cmath>
#include <algorithm>
#include <iomanip>
#include <fstream>
#define INF 2000000000
#define MAXN 100010
using namespace std;
typedef struct{
int x,y;
}punct;
punct p[MAXN];
int i,j,n;
long long sol;
long long dist(punct a,punct b)
{
	return (long long)((long long)(a.x-b.x)*(a.x-b.x)+(long long)(a.y-b.y)*(a.y-b.y));
}
bool cmp(punct a,punct b)
{
	return a.x<b.x;
}

int main()
{
	ifstream fi("cmap.in");
	ofstream fo("cmap.out");
	fi>>n;
	for(i=0;i<n;i++)
	fi>>p[i].x>>p[i].y;
	sort(p,p+n,cmp);
	sol=(1LL<<61);
	for(i=0;i<n;i++)
	for(j=i+1;j<=i+5 and j<n;j++)
		if(dist(p[i],p[j])<sol) sol=dist(p[i],p[j]);
	fo<<setprecision(6)<<fixed;
	fo<<sqrt((double)sol)<<"\n";
	return 0;
}