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 Haskell (GHC 8.8.3) (judge verdict: Accepted)

square :: Int -> Int
square n = n * n

cube :: Int -> Int
cube n = n * n * n

addThree :: Int -> Int -> Int -> Int
addThree x y z = x + y + z

calc :: Int -> Int
calc n = addThree n (square n) (cube n)

toInt :: (String -> Int)
toInt x = read x :: Int

main = getLine >>= putStrLn . show . calc . toInt