#include <stdio.h>

int i;
double sum;
double A[10000000];

int main(int argc, char **argv)
{
   for (i = 0; i < 10000000; i++)
      A[i] = i;


   for (i = 0; i < 10000000; i++)
      sum = A[i]*A[i];

   printf("sum = %lf\n", sum);
}