#include <stdio.h>
int main()
{
    double k=0.0;
    double n=0.0;
    double BMI=0.0;
    scanf("%lf %lf",&k,&n);
    BMI=k/(n*n);
    if(BMI>=18.5&&BMI<=23.9)
    {
        printf("Normal");
    }
    else {
    printf("Abnormal");
    }
    return 0;
}