Encrypt code in js and decrypt the code in c# (.cs)

Encrypt in js and decrypt in c#

c# code
public string DecryptStringAES(string encryptedValue)
        {
            var keybytes = Encoding.UTF8.GetBytes("7061737323313233");
            var iv = Encoding.UTF8.GetBytes("7061737323313233");

            //DECRYPT FROM CRIPTOJS
            var encrypted = Convert.FromBase64String(encryptedValue);
            var decriptedFromJavascript = DecryptStringFromBytes(encrypted, keybytes, iv);

            return decriptedFromJavascript;
        }

        private static string DecryptStringFromBytes(byte[] cipherText, byte[] key, byte[] iv)
        {
            // Check arguments.
            if (cipherText == null || cipherText.Length <= 0)
            {
                throw new ArgumentNullException("cipherText");
            }
            if (key == null || key.Length <= 0)
            {
                throw new ArgumentNullException("key");
            }
            if (iv == null || iv.Length <= 0)
            {
                throw new ArgumentNullException("key");
            }

            // Declare the string used to hold
            // the decrypted text.
            string plaintext = null;

            // Create an RijndaelManaged object
            // with the specified key and IV.
            using (var rijAlg = new RijndaelManaged())
            {
                //Settings
                rijAlg.Mode = CipherMode.CBC;
                rijAlg.Padding = PaddingMode.PKCS7;
                rijAlg.FeedbackSize = 128;

                rijAlg.Key = key;
                rijAlg.IV = iv;
              
                // Create a decrytor to perform the stream transform.
                var decryptor = rijAlg.CreateDecryptor(rijAlg.Key, rijAlg.IV);

                // Create the streams used for decryption.
                using (var msDecrypt = new MemoryStream(cipherText))
                {
                    using (var csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
                    {
                        using (var srDecrypt = new StreamReader(csDecrypt))
                        {
                            // Read the decrypted bytes from the decrypting stream
                            // and place them in a string.
                            plaintext = srDecrypt.ReadToEnd();
                        }
                    }
                }
            }

            return plaintext;
        }
        *****************************************************************************************
        js code 
        --------
        function Encryption(number) {
    console.log(number);
    var key = CryptoJS.enc.Utf8.parse('7061737323313233');
        var iv = CryptoJS.enc.Utf8.parse('7061737323313233');
        var encrypted = CryptoJS.AES.encrypt(CryptoJS.enc.Utf8.parse(number), key,
            {
                keySize: 128 / 8,
                iv: iv,
                mode: CryptoJS.mode.CBC,
                padding: CryptoJS.pad.Pkcs7
            });
        return encrypted.toString();
  }

How can we use dynamic values for key and iv instead of static? Thanks