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

int main()
{
	float value;
	double answer;

	printf("O! Computer, find me the square root of: ");
	scanf("%f",&value);

	if(value < 0.0) abort();

	answer = sqrt((double)value);
	printf("The computer says the answer is %f\n",answer);
	return(0);
}