Sanalista

#include <iostream>
#include <iomanip>
#include <sstream>
#include <vector>
#include <string>
#include <bits/stdc++.h> 
#define ll long long int

using namespace std;

int main() {
	ll n;
	cin >> n;
	ll PossibleMoves = n*n*(n*n-1)/2;
	ll Dangers = 4*(n-1)*(n-2);
	cout << PossibleMoves - Dangers;
}

Test 1

Verdict: WRONG ANSWER

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: WRONG ANSWER