#include<stdio.h>
int main()
{
    float bim;
    scanf ("%f,&bmi");
    if(bmi<18.5)
    {
        printf("Underweight");
    }
    else if(bmi>=18.5 && bim<=24.9)
    {
        printf("Normal Eeight");
    }
    else
    {
        printf("overweight");
    }
    return 0;
}