#include <bits/stdc++.h>

using namespace std;

#define INF 4e18

int N;
vector <pair <long long, long long> > X, Y, V(100005);

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 solve(int st, int dr, vector <pair <long long, long long> > &X, vector <pair <long long, long long> > &Y) {
    if(st >= dr - 1) {
        return INF;
    }

    if(dr - st == 2) {
        if(Y[st] > Y[st + 1]) {
            swap(Y[st], Y[st + 1]);
        }
        return dist(X[st], X[st + 1]);
    }

    int m = (st + dr) / 2;
    long long bst = min(solve(st, m, X, Y), solve(m, dr, X, Y));

    merge(Y.begin() + st, Y.begin() + m, Y.begin() + m, Y.begin() + dr, V.begin());
    copy(V.begin(), V.begin() + (dr - st), Y.begin() + st);

    int ts = 0;
    for(int i = st; i < dr; ++i) {
        if(abs(Y[i].second - X[m].first) <= bst) {
            V[ts++] = Y[i];
        }
    }

    for(int i = 0; i < ts; ++i) {
        for(int j = i + 1; j < ts && j - i < 8; ++j) {
            bst = min(bst, dist(V[j], V[i]));
        }
    }

    return bst;
}

int main() {
    freopen("cmap.in","r",stdin);
    freopen("cmap.out","w",stdout);

    scanf("%d\n", &N);

    int x, y;
    for(int i = 1; i <= N; ++i) {
        scanf("%d %d", &x, &y);

        X.push_back({x, y});
    }

    sort(X.begin(), X.end());

    for(int z = 0; z < N; ++z) {
        Y.push_back({X[z].second, X[z].first});
    }

    cout << setprecision(6) << fixed << sqrt(1.0 * solve(0, X.size(), X, Y)) << '\n';

    return 0;
}