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 Kotlin (1.3.71) (judge verdict: Wrong Answer)

fun main(){
    val s : String = readLine().toString()
    val t : String = readLine().toString()
    val n : Int = s.length
    var a : Int = 0
    for(i:Int in 1..n){
            if (i<n && s.substring(i, i+1) == t.substring(i, i+1)) {

            }
            else if(s.substring(i) == t.substring(i)){

            }
            else {
                a++
            }

    }
    println(a)
}