cut_str

file_path = '1.txt'
with open(file_path, 'r', encoding="utf8") as file, open('1_NEW.txt', 'w', encoding="utf8") as new_file:
    for line in file:
        line = line.strip()
        if line and len(line) <= 50:
            new_file.write(line + '\n')
        elif len(line) > 50:
            new_line = line[:50]
            new_file.write(new_line + '\n')

print("Nice")