#include <fstream>
#include <algorithm>
#include <iomanip>
#include <cmath>
#include <vector>
using namespace std;

ifstream in("cmap.in");
ofstream out("cmap.out");
pair<long long, long long> v[100001];
long long dist_calc(long long x1, long long x2, long long y1, long long y2) {
    return (x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2);
}
long long dist_pair(unsigned int first, unsigned int second) {
    return dist_calc(v[first].first, v[second].first, v[first].second, v[second].second);
}
long long div_et_imp(unsigned int st, unsigned int fin) {
    if (fin - st <= 3) {
        long long d = dist_pair(0, 1);
        if (fin - st == 3) {
            d = min(d, dist_pair(1, 2));
            d = min(d, dist_pair(0, 2));
        }
        return d;
    }
    unsigned long long med = st + (fin - st) / 2;
    long long d = min(div_et_imp(st, med), div_et_imp(med, fin));
    vector <pair<long long, long long>> p;
    for (unsigned int i = st; i < fin; i ++) {
            p.emplace_back(v[i].second, v[i].first);
    }
    sort(p.begin(), p.end());
    for (unsigned int i = 0; i < p.size(); i ++) {
        for (unsigned int j = i + 1; j < i + 8 && j < p.size(); j ++) {
            d = min(d, dist_calc(p[i].first, p[j].first, p[i].second, p[j].second));
        }
    }
    return d;
}
int main() {
    int n;
    in >> n;
    for (unsigned int i = 0; i < n; i ++) {
        in >> v[i].first >> v[i].second;
    }
    sort(v, v + n);
    out << fixed << setprecision(6) << sqrt(div_et_imp(0, n));
    return 0;
}