output_description: Print the value a + a^2 + a^3 as an integer.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      a
attempt: import sys
  
  
  def input():
      return sys.stdin.readline().strip()
  
  
  def list2d(a, b, c):
      return [[c] * b for i in range(a)]
  
  
  def list3d(a, b, c, d):
      return [[[d] * c for j in range(b)] for i in range(a)]
  
  
  def list4d(a, b, c, d, e):
      return [[[[e] * d for j in range(c)] for j in range(b)] for i in range(a)]
  
  
  def ceil(x, y=1):
      return int(-(-x // y))
  
  
  def INT():
      return int(input())
  
  
  def MAP():
      return map(int, input().split())
  
  
  def LIST(N=None):
      return list(MAP()) if N is None else [INT() for i in range(N)]
  
  
  def Yes():
      print("Yes")
  
  
  def No():
      print("No")
  
  
  def YES():
      print("YES")
  
  
  def NO():
      print("NO")
  
  
  sys.setrecursionlimit(10**9)
  INF = 10**19
  MOD = 10**9 + 7
  EPS = 10**-10
  
  a = INT()
  ans = a + a**2 + a**3
  print(ans)
  
problem_description: Statement
  
  Given an integer a as input, print the value a + a^2 + a^3.
samples: [{"input": "2", "output": "14\n    \n\nWhen a = 2, we have a + a^2 + a^3 = 2 + 2^2 + 2^3 = 2 + 4 + 8 = 14.\n\nPrint the answer as an input. Outputs such as `14.0` will be judged as\nincorrect.\n\n* * *"}, {"input": "10", "output": "1110"}]