#include <iostream>
using namespace std;

int main() {
   
    double weight;
    double height;

    cin >> weight;
    cin >> height;

    double BMI = weight/(height*height);
    cout<<(BMI>24.9?"偏胖":(BMI>=20.9?"适中":(BMI>18.5?"苗条":"偏瘦")))<<endl;

    return 0;
}