#include <iostream>
#include <cmath>
using namespace std;

int main() 
{
  size_t n;
  cin >> n;

  double product = 1;
  unsigned int tmp = 1;

  for(int i = 1; i <= n; ++i)
  {
    tmp *= i;
    product *= (1 + sin(tmp));
  }
  cout << product;
}