// editor2
#include<stdio.h>
struct Villager{
    float bmi;
};
void categorize_bmi(float bmi_value){
    if(bmi_value<18.5)
    {
        printf("Underweight\n");
    }
    else if(bmi_value>=18.5 || bmi_value<=24.9)
    {
        printf("Normal weight\n");
    }
    else
    {
        printf("Over weight\n");
    }
}
int main()
{
    float bmi_input;
    scanf("%f",&bmi_input)
    {
        categorize_bmi(bmi_input);
    }
    return 0;
}