#include <cstdio>
int a;
int main()
{
	scanf("%d",&a);
    printf("%d",a+a*a+a*a*a);
    return 0;
}
### Prompt

Construct a CPP code solution to the problem outlined:

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 <cstdio>
int a;
int main()
{
	scanf("%d",&a);
    printf("%d",a+a*a+a*a*a);
    return 0;
}
```