#include <fstream>
#include <algorithm>
#include <iomanip>
#include <cmath>
#define DIM 100010
using namespace std;

ifstream fin ("cmap.in");
ofstream fout ("cmap.out");
int n,i;
pair <long long,long long> v[DIM],w[DIM],d[DIM];
long long dist (pair<long long,long long> a, pair<long long, long long> b){
    return (a.first-b.first)*(a.first-b.first) + (a.second-b.second)*(a.second-b.second);
}
long long modul (long long n){
    if (n < 0)
        return -n;
    return n;
}
void interclasare (int st,int mid,int dr){
    int i = st, j = mid+1, el = st-1;
    while (i <= mid && j <= dr){
        if (v[i].second <= v[j].second){
            d[++el] = w[i];
            i++;
        }
        else{
            d[++el] = w[j];
            j++;
        }
    }
    for (;i<=mid;i++)
        d[++el] = v[i];
    for (;j<=dr;j++)
        d[++el] = v[j];
    for (int i=st;i<=dr;i++)
        w[i] = d[i];
}

long long solve (int st, int dr){
    long long rez;
    if (dr - st == 1){
        rez = dist (v[st],v[dr]);
        interclasare (st,st,dr);
        return rez;
    }
    if (dr - st == 2){
        rez = min (dist(v[st],v[st+1]),min(dist(v[st],v[st+1]),dist(v[st+1],v[st+2])));
        interclasare (st,st,dr-1);
        interclasare (st,st+1,dr);
        return rez;
    }

    int mid = (st+dr)/2;
    long long rezs = solve (st,mid);
    long long rezd = solve (mid+1,dr);

    interclasare (st,mid,dr);

    long long sol = min (rezs,rezd);

    int el = 0;
    for (int i=st;i<=dr;i++){
        if (modul(v[mid].first - v[i].first) <= sol)
            w[++el] = v[i];
    }

    for (int i=1;i<el;i++)
        for (int j=i+1;j<=el && j<=i+7;j++)
            sol = min (sol,dist(w[i],w[j]));

    return sol;


}
int main (){

    fin>>n;
    for (i=1;i<=n;i++)
        fin>>v[i].first>>v[i].second;
    sort (v+1,v+n+1);

    fout<<setprecision(7)<<fixed<<sqrt(solve(1,n));

    return 0;
}