#include<stdio.h>
int main()
{
	double w,h,bim;
	scanf("%lf %lf",&w,&h);
	bim=w/(h*h);
	if(bim<18.5)
	printf("Underweight");
	else if(bim>=18.5&&bim<24)
	printf("Normal");
	else if(bim>=24)
	printf("%.6g\nOverweight");
	return 0;
 }