#include <iostream>
#include <stdlib.h>
#include <string.h>
#include <math.h> 
using namespace std;

int main(int argc, char *argv[] )
{
  //calculated the factorial
  int n,i,j,ans;
    if(argc>1){
      n=(int)atof(argv[1]);
    }
    else{
      n = 1;
    }
    ans=1;
    for(j=0;j<11;j++){
      ans=1;
      for(i=j;i>0;i--){
	//i++ is same as i=i+1 
	ans=ans*i;
	//	cout << i << "\t" << ans << endl;
      }
    cout <<j<<"! = "<<ans << endl;

    }      return 0;
}