Problem:
Score : 100 points

Problem Statement

Given an integer a as input, print the value a + a^2 + a^3.

Constraints

1 \leq a \leq 10

a is an integer.

Input

Input is given from Standard Input in the following format:

a

Output

Print the value a + a^2 + a^3 as an integer.

Sample Input 1

2

Sample Output 1

14

When a = 2, we have a + a^2 + a^3 = 2 + 2^2 + 2^3 = 2 + 4 + 8 = 14.

Print the answer as an input. Outputs such as 14.0 will be judged as incorrect.

Sample Input 2

10

Sample Output 2

1110

Solution in C++ (GCC 9.2.1) (judge verdict: Accepted)

#include <iostream>
#include <iomanip>
#include <algorithm>
#include <numeric>
#include <cmath>
#include <vector>
#include <list>
#include <stack>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <tuple>
#include <cstring>
#include <functional>
using namespace std;
typedef long long ll;
typedef pair<long long, long long> P;
#define rep(i, n) for(long long i=0; i<n; i++)
#define reps(i, s, e) for(long long i=s; i<e; i++)
#define repr(i, n) for(long long i=n-1; i>=0; i--)
#define reprs(i, s, e) for(long long i=e-1; i>=s; i--)

int main(){

    cin.tie(0);
    ios::sync_with_stdio(false);

    ll a; cin >> a;
    cout << a + a*a + a*a*a << endl;

    return 0;
}