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

int main(int argc, char *argv[]) { 
   int i;
   double x;

   i = 2;
   while (i < 10) {
      x = sqrt((double) i);
      printf("%d^2 = %d, sqrt(%d) = %f\n", i, i * i, i, x);
      ++i;
   }

   return 0; 
}