import re s = '''Line 1Line 2Line 1 with random data.Line 4Line 5Line 2 with random data.Line 7Line 8Line 9Line 10Line with random data.Line with random data.'''print(re.findall(r'(?:.*\r?\n){2}.*random data.*', s))
Standard input is empty
['Line 1\nLine 2\nLine 1 with random data.', 'Line 4\nLine 5\nLine 2 with random data.', 'Line 9\nLine 10\nLine with random data.Line with random data.']
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