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

/*      Function declared */
double fun(double t);
/*      Program in C */


main()
{
       int i;
       double t;
       double y;
       double a[11];
       for ( i = 0; i <= 10; i++ )
           {
           t = i;
           y = fun(t);
           printf(" %lf \n",y);
           }
}

/*      Function defined */
double fun(double t)
{
        return t*t;
}