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<bits/stdc++.h>
#define ull unsigned long long
#define ll int64_t 
#define f(i,s,e) for(i=s;i<e;++i)
#define endl << "\n"
#define sp << " "
#define INF INFINITY
#define mset(a,b) memset(a,b,sizeof(a))
#define mod 1000000007
#define mp(a,b) make_pair(a,b)
#define F first
#define S second
#define all(x) x.begin(),x.end()
#define crap ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
#define PI 3.14159265358979323846264338327950288419716939937510
#define pb(a) push_back(a)
#define pf(a) push_front(a)

#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
using namespace std;

int main()
{
	crap;
	ull a;
	cin >> a;
	cout << a + (a*a) + (a*a*a) endl ;
	return 0;
}