import random
word = ''
alph = []
for i in range(97, 123):
alph.append(chr(i))
for i in range(4):
word += random.choice(alph)
wordUp = word.upper()
print(wordUp)
aW1wb3J0IHJhbmRvbQoKd29yZCA9ICcnCmFscGggPSBbXQoKZm9yIGkgaW4gcmFuZ2UoOTcsIDEyMyk6CiAgICBhbHBoLmFwcGVuZChjaHIoaSkpCmZvciBpIGluIHJhbmdlKDQpOgogICAgd29yZCArPSByYW5kb20uY2hvaWNlKGFscGgpCndvcmRVcCA9IHdvcmQudXBwZXIoKQpwcmludCh3b3JkVXAp