<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>String and Number Manipulation Tool</title>
  <style>
    body {
      font-family: Arial, sans-serif;
      padding: 20px;
      margin: 0;
      background-color: #f9f9f9;
    }
    h1 {
      text-align: center;
      margin-bottom: 20px;
    }
    .container {
      display: flex;
      justify-content: space-between;
      gap: 20px;
    }
    .column {
      background: #ffffff;
      border: 1px solid #ddd;
      border-radius: 8px;
      padding: 15px;
      width: 30%;
      box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }
    .column h2 {
      text-align: center;
      margin-bottom: 15px;
    }
    label, input, button {
      display: block;
      margin: 10px 0;
    }
    button {
      padding: 8px 12px;
      background-color: #007BFF;
      color: white;
      border: none;
      border-radius: 5px;
      cursor: pointer;
    }
    button:hover {
      background-color: #0056b3;
    }
    p {
      background: #f1f1f1;
      padding: 10px;
      border-radius: 5px;
      white-space: pre-wrap;
    }
  </style>
</head>
<body>
  <h1>Interactive String and Number Manipulation Tool</h1>
  <div class="container">
    <div class="column">
      <h2>String Operations</h2>
      <label for="stringInput">Enter a string:</label>
      <input type="text" id="stringInput">
      <button onclick="performStringOperations()">Process String</button>
      <p id="stringOutput"></p>
    </div>
    <div class="column">
      <h2>Number Operations</h2>
      <label for="numberInput">Enter a number:</label>
      <input type="text" id="numberInput">
      <button onclick="performNumberOperations()">Process Number</button>
      <p id="numberOutput"></p>
    </div>
    <div class="column">
      <h2>Combined Operations</h2>
      <label for="combinedInput">Enter a string with numbers:</label>
      <input type="text" id="combinedInput">
      <button onclick="performCombinedOperations()">Process Combined Input</button>
      <p id="combinedOutput"></p>
    </div>
  </div>

</body>
</html>