---

x="""A/B_tester;Computer_scientist;Computer_scientist;NA;User_experience_designer;Computer_scientist;Computer_scientist;Computer_scientist;Security_engineer;User_experience_designer;Test_engineer;NA;Network_administrator;User_experience_designer;NA;A/B_tester;A/B_tester;A/B_tester;Test_engineer;Test_engineer;Test_engineer;Test_engineer;User_experience_designer;A/B_tester;Computer_scientist;A/B_tester;NA;Computer_scientist;Security_engineer;A/B_tester;Security_engineer;NA;User_experience_designer;Test_engineer;A/B_tester;A/B_tester;Network_administrator;NA;User_experience_designer;NA;Test_engineer;Security_engineer;Computer_scientist;A/B_tester;Test_engineer;A/B_tester;Security_engineer;Test_engineer;Network_administrator;Computer_scientist;Security_engineer;Test_engineer;NA;Network_administrator;User_experience_designer;Computer_scientist;User_experience_designer;Computer_scientist;Test_engineer;Test_engineer;User_experience_designer;Network_administrator;User_experience_designer;User_experience_designer;Computer_scientist;User_experience_designer;NA;Network_administrator;Computer_scientist;A/B_tester;Security_engineer;A/B_tester;NA;Network_administrator;A/B_tester;Network_administrator;Network_administrator;User_experience_designer;Test_engineer;Test_engineer;User_experience_designer;Computer_scientist;NA;NA;Computer_scientist;A/B_tester;A/B_tester;Test_engineer;A/B_tester;A/B_tester;Computer_scientist;NA;Network_administrator;Security_engineer;NA;NA;Security_engineer;Computer_scientist;Computer_scientist;A/B_tester;NA;A/B_tester;Network_administrator;User_experience_designer;Security_engineer;Computer_scientist;Test_engineer;Security_engineer;Security_engineer;User_experience_designer;Computer_scientist;Test_engineer;User_experience_designer;NA;Security_engineer;Computer_scientist;Network_administrator;NA;NA;Computer_scientist;Security_engineer;Network_administrator;Network_administrator;NA;User_experience_designer;Security_engineer;User_experience_designer;NA;Computer_scientist;Network_administrator;Test_engineer;NA;NA;A/B_tester;Security_engineer;NA;Network_administrator;Computer_scientist;Computer_scientist;Network_administrator;Network_administrator;Security_engineer;Network_administrator;Network_administrator;NA;Computer_scientist;Computer_scientist;Security_engineer;User_experience_designer;Security_engineer;User_experience_designer;NA;Computer_scientist;Computer_scientist;User_experience_designer;User_experience_designer;Security_engineer;User_experience_designer;Computer_scientist;A/B_tester;A/B_tester;Computer_scientist;Test_engineer;Security_engineer;User_experience_designer;Security_engineer;Security_engineer;A/B_tester;User_experience_designer;A/B_tester;NA;Network_administrator;Network_administrator;A/B_tester;User_experience_designer;Test_engineer;User_experience_designer;Network_administrator;Security_engineer;A/B_tester;User_experience_designer;Test_engineer;Network_administrator;A/B_tester;Network_administrator;A/B_tester;Computer_scientist;Computer_scientist;Computer_scientist;User_experience_designer;A/B_tester;User_experience_designer;User_experience_designer;Computer_scientist;User_experience_designer;User_experience_designer;Security_engineer;Network_administrator;Security_engineer;NA;Computer_scientist;A/B_tester;Computer_scientist;A/B_tester;Security_engineer;A/B_tester;Computer_scientist;A/B_tester;Network_administrator;Security_engineer;Test_engineer;Test_engineer;A/B_tester;Computer_scientist;User_experience_designer;User_experience_designer;NA;Security_engineer;Security_engineer;NA;A/B_tester;Computer_scientist;User_experience_designer;Computer_scientist;Test_engineer;Test_engineer;Test_engineer;NA;User_experience_designer;Test_engineer;A/B_tester;NA;A/B_tester;NA;Network_administrator;Network_administrator;User_experience_designer;User_experience_designer;User_experience_designer;Network_administrator;Security_engineer;A/B_tester;A/B_tester;A/B_tester;Security_engineer;Computer_scientist;NA;NA;Network_administrator;Network_administrator;NA;A/B_tester;Network_administrator;NA;Computer_scientist;A/B_tester;Network_administrator;Security_engineer;A/B_tester;Computer_scientist;Test_engineer;A/B_tester;Security_engineer;Computer_scientist;Network_administrator;Computer_scientist;A/B_tester;A/B_tester;User_experience_designer;NA;Test_engineer;Computer_scientist;User_experience_designer;User_experience_designer;NA;A/B_tester;Test_engineer;User_experience_designer;Network_administrator;Computer_scientist;Computer_scientist;Network_administrator;Test_engineer;NA;A/B_tester;A/B_tester;Security_engineer;Test_engineer;A/B_tester;A/B_tester;User_experience_designer;NA;Network_administrator;Network_administrator;NA;Test_engineer;Test_engineer;Network_administrator;Test_engineer;Security_engineer;Network_administrator;NA;Computer_scientist;Security_engineer;Test_engineer;NA;Computer_scientist;NA;NA;Security_engineer;Network_administrator;Test_engineer;Security_engineer;Test_engineer;NA;Secur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x=[i for i in x if i!="NA"]
n=len(x)

d={}
for i in x:
    d[i]=d.get(i,0)+1

k=len(d)
e=n/k
chi=0
for v in d.values():
    chi+=(v-e)**2/e

df=k-1
crit=11.07049769
ans=0

print(df)
print(chi)
print(crit)
print(ans)