#include <iostream>

using namespace std;

int main()
{
   int f = 1;
   int i;
   
   int inputnum;

   cout << "Input a number from 1 to 10" << endl;
   cin >> inputnum;
   cout << endl;

   for(i = 1; i <= inputnum; i++) 
   {
      f = f * i;
   }
   
   cout << "factorial(" << inputnum << ") = " << f << endl;

   return 0;
}