/*   /\_/\
    (= ._.)
    / >0  \>1
*/
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

ll n, s = 1, mod = 1e9 + 7;
int main()  
{

  ios::sync_with_stdio(false);
  cin.tie(0);
  cin >> n;
  for (ll i = 1; i <= n; ++i)
  {
    s = (s * i) % mod;
  }
  cout << s;
  return 0;
}

#include <bits/stdc++.h>
using namespace std;

int main()
{
 long long n;
 cin>>n;
 freopen("GIAITHUA.INP","r",stdin);
 freopen("GIAITHUA.OUT","w",stdout);
 for(int i=n-1;2<=i;i--){
    n*=i;
 }
 cout<<n%100+7;
//de sai r nhe! Bai nay lm cho de la n! chia lay du cho 100 roi +7 vao do
}