class PersonForBMI:
    def __init__(self, age, weight, height, gender):
        self.age = age
        self.weight = weight
        self.height = height
        self.gender = gender
        self.bmi = 0

    def calculate_bmi(self):
        if self.gender.upper() == 'male'.upper():
            self.bmi = self.weight / (self.height/100 * self.height/100) * 0.98
        elif self.gender.upper() == 'female'.upper():
            self.bmi = self.weight / (self.height / 100 * self.height / 100) * 0.94
        return self.bmi

    def conclusions(self):
        if self.bmi < 18.0:
            print('Your weight is too low')
        elif self.bmi < 24.9:
            print('Your weight is normal')
        elif self.bmi < 29.9:
            print('You have an overweight')
        elif self.bmi < 34.9:
            print('first level overweight')
        elif self.bmi < 39.9:
            print('second level overweight')
        else:
            print('third level overweight')

