题解 | #记录喜好的字典#

# language={'NiuNiu':'Java','NiuMei':'Python','Niukele':'CPP','NiuNeng':'Python','Tony':'Java','Anna':'CPP','Allen':'CPP'}
# n=input()
# l=[]
# for k,v in language.items():
#     if v==n:
#         l.append(k)
# print(l if l else 'Nobody')

n = input()


def name_languages(language, value, default_name=None):
    l=[]
    for k, v in language.items():
        if v == value:
            l.append(k)
    return l if l else default_name


l = {
    "NiuNiu": "Java",
    "NiuMei": "Python",
    "Niukele": "CPP",
    "NiuNeng": "Python",
    "Tony": "Java",
    "Anna": "CPP",
    "Allen": "CPP",
}
value=n
default_name='Nobody'
print(name_languages(l,n,default_name))