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: Runtime Error)

solve :: String -> String -> Int -> Int
solve (s:sx) (t:tx) ans
 | sx == []         = newAns
 | otherwise        = solve sx tx newAns
  where newAns = ans + if s == t then 0 else 1

main :: IO ()
main = do 
 s <- getLine :: IO String
 t <- getLine :: IO String
 print $ solve s t 0