#include <cstdio>
#include <cstdlib>
#include <climits>
#include <map>

long long cit() {
    long long ans = 0;
    char c = getchar();
    bool neg = false;
    while (c < '0' || c > '9') {
        if (c == '-') {
            c = getchar();
            neg = true;
            break;
        }
        c = getchar();
    }
    while (c >= '0' && c <= '9') {
        ans = (ans << 3) + (ans << 1) + (c - '0');
        c = getchar();
    }
    return (neg) ? -ans : ans;
}

void afis(long long n, char d) {
    int l = 0;
    char c[20];
    if (n == 0) {
        putchar('0');
    }
    if (n < 0) {
        putchar('-');
        n = -n;
    }
    while (n > 0) {
        c[l++] = n % 10 + '0';
        n /= 10;
    }
    for (int i = l - 1; i >= 0; i--) {
        putchar(c[i]);
    }
    putchar(d);
}

using namespace std;

long long f(map<long long, long long> m, long long k) {
    long long ans = LLONG_MAX;
    map<long long, long long>::iterator it = m.begin();
    long long st = 0, dr = it->second;
    long long ls = 0, ld = 0;
    for (it++; it != m.end(); it++) {
        dr += it->second;
        ld += it->second * (it->first - m.begin()->first);
    }
    for (it = m.begin(); ; ) {
        dr -= it->second;
        long long aux = ls + ld - k * ((st > dr) ? st : dr);
        if (aux < ans)
            ans = aux;
        st += it->second;
        int cc = it->first;
        it++;
        if (it == m.end())
            break;
        ls += st * (it->first - cc);
        ld -= dr * (it->first - cc);
    }
    return ans;
}

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

    long long n = cit(), dx = cit(), dy = cit();
    map<long long, long long> lx, ly;
    for (int i = 1; i <= n; i++) {
        long long x = cit(), y = cit();
        lx[x]++;
        ly[y]++;
    }
    long long px = f(lx, dx);
    long long py = f(ly, dy);
    printf("%lld", px + py);

    return 0;
}