">
    <span class="md-ellipsis">
      Control Flow
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  <a href="#file-operations" class="md-nav__link">
    <span class="md-ellipsis">
      File Operations
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          <li class="md-nav__item">
  <a href="#cryptography" class="md-nav__link">
    <span class="md-ellipsis">
      Cryptography
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          <li class="md-nav__item">
  <a href="#data-structures" class="md