Hashlib in python 2.7.10

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#
#       This is an example program to demonstrate the use of the hashlib library (C) 2017 Adm1n_0verride
#
import hashlib

# In md5
am = hashlib.md5()
am.update('Greetings and merry christmas!')
print am.hexdigest()
# prints '2d13f4f787c5dcff600d2a2ca1862e58'

# In SHA1
a = hashlib.sha1()
a.update('Example of sha1')
print am.hexdigest()
# prints 'd8133a2b795859d876425eb4e2331455'

# In SHA224
b = hashlib.sha224()
b.update('The quick brown fox jumped over the lazy brown dog')
print b.hexdigest()
# prints '5f1cfd0e3d26dbc80f366eaed578aa71b0fe998d9775e45bf513d634'

# In SHA256
c = hashlib.sha256()
c.update('Hello friend')
print c.hexdigest()
# prints 'ad7c4d7f20d11015260cd4609df255c99ebef944f59110167f2ff62a2c750072'

# In SHA384
d = hashlib.sha384()
d.update('Whatever you get the picture.')
print d.hexdigest()
# prints '3175d35e42671528c971a0611bbe1556f27db5311940a6f62ba07ff03a84f90d200b5ac97146dacb5c58a995ba11bd5a

# In SHA512
asd = hashlib.sha512()
asd.update('The day is tommrow')
print asd.hexdigest()
# prints 'caf1272b9a58c557001e2a1aafffc4215e3c3693352af3db9c2786d25dfe24d55d4b72e3f8dd03791fd6e0fabe0023c629dfbacb05584db553d7162acb40d1fa'