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 <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define max(a, b) ((a) > (b) ? (a) : (b))
#define min(a, b) ((a) < (b) ? (a) : (b))

typedef long long int ll;

int read_int()
{
    int a;
    scanf("%d", &a);
    return a;
}

int read_lint()
{
    ll a;
    scanf("%lld", &a);
    return a;
}

int read_float()
{
    float a;
    scanf("%f", &a);
    return a;
}

int read_double()
{
    double a;
    scanf("%lf", &a);
    return a;
}

int main()
{
    int a = read_int();
    printf("%d\n", a + a * a + a * a * a);
    return 0;
}