#include using namespace std;

int main() {

double weight;
double height;

cin >> weight;
cin >> height;
double bmi=weight/(height*height);
if(bmi>24.9)
{
    cout<<"偏胖"<<endl;
}
else if(bmi>20.9)//这儿其实只要是满足大于20.9就可以,因为在执行时是按照顺序结构来进行执行;
{
    cout<<"适中"<<endl;
}
else if(bmi>18.5)
{
    cout<<"苗条"<<endl;
}
else
{
    cout<<"偏瘦"<<endl;
}
return 0;

}