#include<stdio.h>
int main()
{
    int kg;
    double m;
    scanf("%d %lf",&kg,&m);
    double bmi=kg/m/m;
    if(bmi<18.5){
        printf("Underweight");
    }else if(bmi>=18.5&&bmi<=24){
        printf("Normal");
    }else if(bmi>24){
        printf("%.6g\nOverweight",bmi);
    }


    return 0;
}