Here is my revised version of the cube source code ie the randomiser...

//This piece of software is licenced under the terms of the GPL version 3.
//(C) Hugh Mulqueen 2013
#include <stdio.h>
#include <math.h>
#define pi = "3.142857143"
int x;
double pi;
double A;
double B;
double C;
double D;
double E;
double F;
double cubed;
int main()
{
int G, M;
int G1, G2;

double a=x^0;
double b=x^1;
double c=x^2;
double d=x^3;
double e=x^4;
double f=x^5;
double g=x^6;
double h=x^7;
double i=x^8;
double j=x^9;
double k=x^10;
double l=x^11;
double m=x^12;
double n=x^13;
double o=x^14;
double p=x^15;

A=a*b*c*d*e*f*g*h*i*j*k*l*m*n*n*o*p;
B=a*b*c*d*e*f*g*h*i*j*k*l*m*n*n*o*p;
C=a*b*c*d*e*f*g*h*i*j*k*l*m*n*n*o*p;
D=a*b*c*d*e*f*g*h*i*j*k*l*m*n*n*o*p;
E=a*b*c*d*e*f*g*h*i*j*k*l*m*n*n*o*p;
F=a*b*c*d*e*f*g*h*i*j*k*l*m*n*n*o*p;

cube();
{
G1=m*9.81^2;
128*x^64/sqrt(2)*M*9.81^2=G2;

for (x=0; x < 128; x++)
printf("Well Enter value for x", x);
scanf("%d", &x);
printf("Please enter the value for mass", M);
scanf("%d", &M);
printf("The resulting number is:", cubed);
}
}

To compile this program on windows systems install minigw and use the following command:
gcc -o cube cube.c

It should output a executable file be warned this is still in alfa stage so give me a break...