#include <iostream>
#include <fstream>
#include <cmath>
#include <algorithm>
#include <iomanip>
using namespace std;
ifstream fin("cmap.in");
ofstream fout("cmap.out");
#define MAX 100010
#define INF (~(1ll<<63))
typedef long long ll;

pair<int, int> a[MAX], b[MAX], c[MAX];


ll dist(pair<int, int> a, pair<int, int> b)
{
    return 1ll * (a.first - b.first) * (a.first - b.first)+
        1ll * (a.second - b.second) * (a.second - b.second);
}

ll ans(int st, int dr)
{
    //cout << st << " " << dr << "\n";
    int j, i;
    if(st == dr)
        return INF;
    if(st + 1 == dr)
        return dist(a[st], a[dr]);
    int mij = (st + dr) >> 1;
    int line = a[mij].first;
    long long delta = min(ans(st, mij), ans(mij + 1, dr));
    merge(a + st, a + mij + 1, a + mij + 1, a + dr + 1, b + st);
    int dr2 = 0;
    for(i = st ; i <= dr ; i ++)
    {
        a[i] = b[i];
        if(abs(a[i].first - line) <= delta)
        {
            b[++dr2] = a[i];
        }
    }
    for(i = 1 ; i <= dr2 ; i ++)
    {
        for(j = i + 1 ; j <= i + 10 && j <= dr2 ; j++)
        {
            delta = min(delta, dist(a[i], a[j]));
        }
    }
    return delta;
}

int main()
{
    int n, i;
    fin >> n;
    for(i = 1 ; i <= n ; i++)
    {
        fin >> a[i].first >> a[i].second;
    }
    sort(a + 1, a + n + 1);
    for(i = 1 ; i <= n ;i++)
    {
        swap(a[i].first, a[i].second);
    }
    fout << fixed << setprecision(8) << sqrt(ans(1, n)) << "\n";
}