#include <stdio.h>
#include <math.h>
int main()
{
	float m,h,c;
	scanf("%llf %llf",&m,&h);
	c=m/(h*h);
	if (c<18.5) printf("Underweight");
	else if(c<24) printf("Normal");
	else printf("%.4llf\nOverweight",c);
	return 0;
}