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<form action="/test_action.php">

  <label for="fname">Họ và Tên:</label><br>

  <input type="text" id="fname" name="fname" value="Nguyễn Văn A"><br>

  <label for="old">Tuổi:</label><br>

  <input type="number" id="old" name="old" value="18"><br><br>

  <input type="submit" value="Xác nhận">

</form>

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