#include <stdio.h>

void main(void)
{
    double a,b,eps;
    int n;
    
    a = sqrt(16.0);
    b = sqrt(64.0);
    eps = a + a - b;
    (void)printf("a = %g\tb = %g\teps = %g\n", a, b, eps);

    n = (int)a;
    (void)printf("n = %d\n", n);
}
