#include <iostream>
using namespace std;
int main() {
	int a;
	cin >> a;

	cout << a + (a*a) + (a*a*a) << endl;
}
### Prompt

Generate a cpp solution to 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 a;
	cin >> a;

	cout << a + (a*a) + (a*a*a) << endl;
}
```