#include <iostream>
#include <stdlib.h>
#include <string.h>
#include <math.h> 
using namespace std;
int fact(int n){
  int i,ans;
  ans=1;
  for(i=1;i<=n;i++){
    ans=ans*i;
  }
  return ans;
}
int main(int argc, char *argv[] )
{
  //calculated the factorial
  int n,max,i;
  int ans[2][20];
  if(argc>1){
    max=(int)atof(argv[1]);
  }
  else{
    // for default
    max = 10;
  }

  for(i=0;i<max;i++){
      ans[0][i]=i;
      ans[1][i]=fact(i);
    }
  for(i=0;i<max;i++){
    cout <<ans[0][i]<<"!="<<ans[1][i] << endl;
  }
    return 0;
}