#include <stdio.h>
#include <math.h>
main()
{
	double a,sq;

	printf("Input a Number  = ? ");
	scanf("%lf", &a);

	printf("bool : %d %d\n", a>=0.0, a<0.0);

	if(a<0.0){
		sq=sqrt(-a);
		printf("sqrt = %lf I \n", sq);
	}else{
		sq=sqrt(a);
		printf("sqrt = %lf\n", sq);
	}
}