题解 | #记录喜好的字典#

key_niuniu={'NiuNiu':'Java','NiuMei':'Python','Niukele':'CPP','NiuNeng':'Python','Tony':'Java','Anna':'CPP','Allen':'CPP'}
def get_key(val):
    lst=[]
    for key,value in key_niuniu.items():
        if val == value:
            lst.append(key)
    return lst
a=input()
language=list(key_niuniu.values())
if a not in language:
    print('Nobody')
else:
    print(get_key(a))