N3_ФТ

#include <iostream>
#include <cmath>
#include <vector>
#include <queue>
#include <algorithm>
#include <string>
#include <stack>
#include <set>
#include <map>
#define pii pair <int, int>
#define pb(x) push_back(x)
using namespace std;
using ll = long long;
using ld = long double;
using db = double;
void cv(vector <int> &v) {
    for (auto x : v) cout << x << ' ';
    cout << "\n";
}

void cvl(vector <ll> &v) {
    for (auto x : v) cout << x << ' ';
    cout << "\n";
}


void cvv(vector <vector <int> > &v) {
    for (auto x : v) cv(x);
    cout << "\n";
}

void cvb(vector <bool> v) {
    for (bool x : v) cout << x << ' ';
    cout << "\n";
}

void cvs(vector <string>  v) {
    for (auto a : v) {
        cout << a << "\n";
    }
}

void cvp(vector <pii> a) {
    for (auto p : a) {
        cout << p.first << ' ' << p.second << "\n";
    }
    cout << "\n";
}



int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n = 25, m = 37;
    int v1, v2, v3, v4, ans;
    v1 = (n - 1) * (m - 2) * (n * (m - 1) - 4) + (n - 1) * 2 * (n * (m - 1) - 2);
    v2 = v1;
    v3 = n * (m - 3) * (n * (m - 1) - 3) + n * 2 * (n * (m - 1) - 2);
    v4 = m * (n - 3) * (m * (n - 1) - 3) + m * 2 * (m * (n - 1) - 2);
    ans = v1 + v2 + v3 + v4;
    ans /= 2;
    cout << ans;
}