class Person:
    def __init__(self,name,age):
        self._name=name
        self._age=age

    @property
    def name(self):
        return self._name

    @property
    def age(self):
        return self._age

    @name.setter
    def name(self,name):
        self._name = name

    @age.setter
    def age(self, age):
        if int(age) < 0:
            raise Exception('Age must be positive number')
        elif int(age) > 180:
            raise Exception('Age must be between 0-180')
        else:
            self._age = age

    def __str__(self):
        return f'{self._name} {self._age}'

a = Person("Tundzhay",-1)

print(a)