#include <stdio.h>
int main()
{
int weight = 0;
int height = 0;
while(scanf("%d %d\n", &weight, &height) != EOF)
{
// getchar();
if(weight > 0 && height > 0)
{
float height1 = height / 100.0;
float bmi = weight / (height1 * height1);
if(bmi >= 23.9 && bmi <= 27.9)
{
printf("Overweight\n");
}
else if(bmi >= 18.5 && bmi <= 23.9)
{
printf("Normal\n");
}
else if(bmi < 18.5)
{
printf("Underweight\n");
}
else
{
printf("Obese\n");
}
}
}
return 0;
}


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