#include <iostream>
using namespace std;

int fator (int x);

int main ()
{

int a, res ;
cout<< "digite... "<<endl;
cin>>a;
res = fator(a);
cout<<"o fatorial e: "<<res<<endl;



return(0);

}

int fator (int x)
{
int w,i,fat,y;
for(i=1;i<=x;i++)
{
  fat = x * i;
  y = fat;
  w = y * i;


return(w);
}