#include <bits/stdc++.h>

using namespace std;

struct point
{
    long long x, y;
    point(){}
    point(long long x, long long y) : x(x), y(y) {}
};

const long long INF = 2e+18 + 42;
point a0, b0;

inline long long dist(point a, point b)
{
    return (a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y);
}

struct stcmp
{
    bool operator() (point a, point b)
    {
        return dist(a, b0) > dist(b, b0);
    }
};

inline bool cmpv(point a, point b)
{
    return dist(a, a0) < dist(b, a0);
}

int main()
{
    ios_base::sync_with_stdio(false);
    set<point, stcmp> st;
    int n;
    cin >> n;
    cin >> a0.x >> a0.y >> b0.x >> b0.y;
    vector<point> v;
    for (int i = 0; i < n; i++)
    {
        point c;
        cin >> c.x >> c.y;
        v.push_back(c);
        st.insert(c);
    }
    sort(v.begin(), v.end(), cmpv);
    long long ans = dist(*st.begin(), b0);
    for (int i = 0; i < n; i++)
    {
        st.erase(v[i]);
        long long b_dist = 0;
        if (!st.empty())
        {
            b_dist = dist(*st.begin(), b0);
        }
        ans = min(ans, b_dist + dist(v[i], a0));
    }
    cout << ans;
}