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();
//write your code here......
double index=weight/(height*height);
String s;
if(index>24.9) s="偏胖";
else if(index>=20.9) s="适中";
else if(index>=18.5) s="苗条";
else s="偏瘦";
System.out.println(s);
}
}

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