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