import os
def UcitajUlaz():
n = int(input())
lista = []
for i in range(n):
s = input()
lista.append(s)
return lista
def PronadjiGresku(imena):
for u in imena:
if(u[-4:] != '.txt'):
return False
return True
def NadjiGresku():
return os.path.exists("keywords.csv")
def Obradi(ime):
return 0
imena = UcitajUlaz()
ool = PronadjiGresku(imena)
ol = NadjiGresku()
if(not ool):
print("PODACI_GRESKA", end = '')
elif(not ol):
print("DAT_GRESKA", end = '')
else:
for i in range(len(imena)):
imena[i] = Obradi(imena[i])
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