@ -1,9 +0,0 @@
with open('data.txt', 'r', encoding='utf-8') as file:
lines = file.readlines()
upper_lines = [line.upper() for line in lines]
with open('output.txt', 'w', encoding='utf-8') as file:
file.writelines(upper_lines)
print("Файл output.txt успешно создан.")
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