def checkio(words: str) -> bool:
    is_digits = [word.isdigit() for word in words.split()]
    for i in range(len(is_digits) - 2):
        if is_digits[i: i+3] == [False, False, False]:
            return True
    return False


#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
    print('Example:')
    print(checkio("Hello World hello"))

    assert checkio("Hello World hello") == True, "Hello"
    assert checkio("He is 123 man") == False, "123 man"
    assert checkio("1 2 3 4") == False, "Digits"
    assert checkio("bla bla bla bla") == True, "Bla Bla"
    assert checkio("Hi") == False, "Hi"
    print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")


def slice_chained_chunks(l, chunk_size):
    for i in range(len(l)-chunk_size+1):
        yield l[i:i+chunk_size]
