def getBMI(weight, height):
    BMI = weight/((height/100)**2)
    if BMI < 18.5:
        print('Underweight')
    elif BMI >= 18.5 and BMI <= 23.9:
        print('Normal')
    elif BMI > 23.9 and BMI <= 27.9:
        print('Overweight')
    else: 
        print('Obese')

while True:
    try:
        weight, height = map(int, input().split())
        getBMI(weight, height)
    except EOFError:
        break