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