#include <stdio.h>
#include <math.h>
typedef double R;
R rnd(void);
int main(){int c = 10000;
  R xx=0, xy=0, xz=0;
  R yy=0, yz=0, zz=0;
  R xs=0, ys=0, zs=0;
  R a = sqrt(3)/2;
  int j=c; while (j--){
    R x = rnd(), b = a*rnd(), y = b+0.5*x, z = b-0.5*x;
    xx += x*x; xy += x*y; xz += x*z;
    yy += y*y; yz += y*z; zz += z*z;
    xs += x; ys += y; zs += z;
    if(j<50) printf("%6.3f %6.3f %6.3f\n", x, y, z);}
  printf("%8.5f %8.5f %8.5f\n", xx/c, xy/c, xz/c);
  printf("%8.5f %8.5f %8.5f\n", xy/c, yy/c, yz/c);
  printf("%8.5f %8.5f %8.5f\n\n", xz/c, yz/c, zz/c);
  printf("%8.5f %8.5f %8.5f\n", xs/c, ys/c, zs/c);
  return 0;}