class Car():
    def __init__(self, mileage, fuel):
        self.mileage = mileage
        self.fuel = fuel

    def vitr(self):
        self.fuel = self.fuel - 3
        print('Залишилось пального: ' + str(self.fuel))

    def zapr(self):
        self.fuel = self.fuel + 10
        print('Залишилось пального: ' + str(self.fuel))

    def probig(self):
        print('Пробiг: ' + str(self.mileage))


SomeCar = Car(0, 0)

SomeCar.vitr()
SomeCar.zapr()
SomeCar.probig()