#include <stdio.h>

int main() { int x = 0; int y = 0; double a = 0; double b = 0;

while (scanf("%d %d", &x, &y) != EOF)
{
    b = y / 100.0;
    a = x*1.0 / (b*b);
    if (a < 18.5)
        printf("Underweight\n");
    else if (a > 27.9)
        printf("Obese\n");
    else if (a>=18.5 && a<=23.9)
        printf("Normal\n");
    else
        printf("Overweight\n");
}
return 0;

}