#include<iostream>
using namespace std;

int main() {
	int x;
	cin >> x;
	cout << x * x * x + x * x + x << endl;
}
### Prompt

Create a solution in CPP for the following problem:

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.

Examples

Input

2


Output

14


Input

10


Output

1110

### Response

```cpp
#include<iostream>
using namespace std;

int main() {
	int x;
	cin >> x;
	cout << x * x * x + x * x + x << endl;
}
```