#include<stdio.h>
int main(){
double  h=0,m=0,a=0;

scanf("%lf %lf",&m,&h);
h=h*h;
 a=m/h;
 if(a<18.5) printf("Underweight");
 if(a>=18.5&&a<24) printf("Normal");
 if(a>=24)
    printf("%.3f\nOverweight",a);
}