#age=input()
#print('hell6545676567865578o,',age)



kwww = {'zhanglin':100,'zhangshengfei':2322200}
kwww['zhangshengwan']=7482
print(kwww['zhangshengwan'])
print(kwww)
print('zhang1lin' in kwww)

name = input('qingshuru')
neme = float(name)
print(abs(neme))