import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double height = scanner.nextDouble();
        double weight = scanner.nextDouble();
        double BMI=weight/(height*height);
        if(BMI<18.5){
            System.out.println("偏瘦");
        }else if(BMI<20.9){
            System.out.println("苗条");
        }else if(BMI<24.9){
            System.out.println("适中");
        }else{
            System.out.println("偏胖");
        }
    }
}