#include <iostream>
using namespace std;

int main() {

    double weight;
    double height;

    cin >> weight;
    cin >> height;

    // write your code here......
    double bmi = weight / (height * height);

    if (bmi > 24.9)
        cout << "偏胖" << endl;
    else if (bmi >= 20.9)
        cout << "适中" << endl;
    else if (bmi >= 18.5)
        cout << "苗条" << endl;
    else
        cout << "偏瘦" << endl;

    return 0;
}