#include <iostream>
using namespace std;
int main() {
float a;
float b;
float p;
cin>>a;
cin>>b;
p=a/(b*b);
if(p<25&&a>16)
{cout<<"normalne";}
else
if(p>25)
{cout<<"nadwaga";}
else
if(p<25)
{cout<<"bardzo gryby";}
// your code goes here
return 0;
}
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