# script.py

with open('data.txt', 'r', encoding='utf-8') as file:
    lines = file.readlines()

uppercase_lines = [line.strip().upper() for line in lines]

with open('output.txt', 'w', encoding='utf-8') as output_file:
    for line in uppercase_lines:
        output_file.write(line + '\n')

print("Данные успешно записаны в output.txt")