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>
using namespace std;
#define mod 1000000007
#define ll long long
#define mp make_pair
#define pb push_back
#define ff first
#define ss second
#define set0(a) memset ((a), 0 , sizeof(a))
#define set1(a) memset((a),-1,sizeof (a))
#define pi pair<int, int>
#define ps pair<string, string>
#define pl pair<long, long>
#define pll pair<long long, long long>
#define vll vector<long long>
#define vl vector<long>
#define vi vector<int>
#define vs vector<string>
#define vps vector< ps >
#define vpi vector< pi >
#define vpl vector< pl >
#define vpll vector< pll >
#define flash  ios_base::sync_with_stdio(false); cin.tie(NULL);
#define tc(t,T) for(long long t=0;t<T;t++)
#define rep(i,s,n,d) for(long long i=s;i<n;i=i+d)

bool sortbysec(const pll &a,
              const pll &b)
{
    return (a.second < b.second);
}
/*bool cxp pair<ll, pll> &a,
              const pair<ll, pll> &b)
{
    return (a.ff < b.ff);
}*/

void func(void)
{
        freopen("input.txt","r",stdin);
        freopen("output.txt","w",stdout);
}
ll gcd(ll a,ll b){
    if(b==0)return a;
    else return gcd(b,a%b);
}
void printStack(stack<string> s){
    if(s.empty())return;

    string x=s.top();
    s.pop();
    printStack(s);
    cout<<x;
    s.push(x);

}

int main(){
        ll a;
        cin>>a;
        cout<<a+a*a+a*a*a<<endl;
}


// 1 2 3 1 5 3 1 0 1 0 2
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