class Chocolate():
    def __init__(self,cacao_content):
        self.cacao_content = cacao_content
    def sweet(self,content=30):
        cacao_content = 30
        return cocao_content
    def semisweet(self,content=50):
        cacao_content = 50
        return cocao_content
    def bittersweet(self,content=70):
        cacao_content = 70
        return cocao_content
    def bitter(self,content=99):
        cacao_content = 99
        return cocao_content

sade = Chocolate()
print(sade.sweet())