class Here:
    def __init__(self,name,hp,attack)
    self.level=1
    self.name=name
    self.hp=hp
    self.attack=attack
yase=Here("dfhc",300,20)
houyi=Here("cgfc"900,30)
upgrade()
upgrade()
self.hp+1000=hp+1000
print()
yase=Hero(300'20)