#include<iostream>

using namespace std;

int num;
int nnum;
int cnt=1;
int newn;

int main()
{
cout<<"Enter a number so I can enter its factorial"<<endl;
cin>>num;
while(num!=0){
num=nnum*(num-cnt);
++cnt;
}
cout<<"The facorial of "<<num<<"is"<<nnum<<endl;
}