#include "stdio.h"
#include <iostream>
#include "math.h"

using namespace std;

int main ( int argc, char** argv ) {

  double a, b; //previously was int then float as examples
  
  double c;
  c = atof(argv[1]);
  cout << c << endl;

  //cout << "Give me 2 numbers: ";
  fprintf(stdout,"Give me 2 numbers: ");
  //cin >> a >> b;
  scanf("%lf %lf", &a, &b);

  if ( a < 0 ) {
    fprintf(stderr,"I don't like your numbers!\n");
  }
  else if ( a == 0 ) {
    cout << "Argh, zero!!" << endl;
  }
  else {
    cout << "You are awesome!" << endl;
  }

  //cout << "Their sum is = " << pow(a,b) << endl;
  printf("%f %f %f\n",sqrt(a),exp(b),log10(a*b));

  //Next time: functions, switch, file reading & writing, strings, arrays
  return 0;

}