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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Symbol → Number Decrypter</title>
  <style>
    body {
      font-family: Arial, sans-serif;
      background: #0d1117;
      color: #c9d1d9;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      height: 100vh;
    }
    textarea, button {
      margin: 8px;
      padding: 10px;
      border-radius: 6px;
      border: none;
      font-size: 16px;
    }
    textarea {
      width: 340px;
      height: 100px;
    }
    button {
      background: #8957e5;
      color: white;
      cursor: pointer;
    }
    button:hover {
      background: #9c7ae2;
    }
    h2 {
      margin-bottom: 0;
    }
  </style>
</head>
<body>
  <h2>🔓 Symbol → Number Decrypter</h2>
  <p>Paste your cipher key below, then enter symbols (e.g. ! @ # $)</p>

  <textarea id="keyInput" placeholder='Paste cipher key JSON here (e.g. {"a":12,"b":4,"c":25,"d":7})'></textarea>
  <textarea id="symbolsInput" placeholder="Enter symbols to decrypt (e.g. ! @ # $)"></textarea>
  <button onclick="decrypt()">Decrypt</button>
  <textarea id="outputText" placeholder="Decrypted numbers will appear here..." readonly></textarea>

  <script>
    function decrypt() {
      const keyText = document.getElementById("keyInput").value.trim();
      if (!keyText) {
        alert("Please paste your cipher key first!");
        return;
      }

      let cipherKey;
      try {
        cipherKey = JSON.parse(keyText);
      } catch {
        alert("Invalid key format. Make sure it’s valid JSON like {\"a\":12,\"b\":4,...}");
        return;
      }

      // The default symbol set corresponding to a–z
      const symbols = [
        "!", "@", "#", "$", "%", "^", "&", "*", "(", ")", 
        "-", "_", "+", "=", "{", "}", "[", "]", ":", ";", 
        "<", ">", "?", "/", "|", "~"
      ];

      // Create symbol → letter mapping
      const symbolToLetter = {};
      for (let i = 0; i < symbols.length; i++) {
        symbolToLetter[symbols[i]] = String.fromCharCode(97 + i); // a–z
      }

      const inputSymbols = document.getElementById("symbolsInput").value.trim().split(/\s+/);
      let output = "";

      for (const sym of inputSymbols) {
        const letter = symbolToLetter[sym];
        if (letter && cipherKey[letter] !== undefined) {
          output += cipherKey[letter] + " ";
        } else {
          output += "? ";
        }
      }

      document.getElementById("outputText").value = output.trim();
    }
  </script>
</body>
</html>
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