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

#define BIN_MAX 100
#define X_MIN -3
#define X_MAX 3
#define STEP 1
double gaus(double x){
  return exp(-x*x/2.)/sqrt(2*M_PI);
}

int main(int argc, char *argv[] )
{
  //calculated the factorial
  int i,bin;
  double x;
  double g[3][BIN_MAX];
  i=0;
  x=X_MIN;
  g[2][i]=0;
  while (x<X_MAX){
    g[0][i]=x;
    g[1][i]=gaus(x);
    i++;
    x+=STEP;
  }
  bin=i;
  for(i=0;i<bin;i++){
      cout << g[0][i] << "\t" << g[1][i] << endl;
    }
    return 0;
}