#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int GetRandomNumber(int low, int high)
{
  double d = rand() / (RAND_MAX + 1.0);
  int n = d * (high + 1 - low);
  return n + low;
}

int main(void)
{
  int RandomNumber;
  srand((unsigned)time(NULL));
  do
  {
    RandomNumber = GetRandomNumber(1, 6);
    printf("You rolled a %d\n", RandomNumber);
  } while(RandomNumber != 6);

  return 0;
}