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