Encrypt XOR cipher (Exercise)

using System;
using System.Text;
using System.Text.RegularExpressions;

namespace ConsoleTests
{
    class ConsoleTests
    {
        static void Main()
        {
            string input = Console.ReadLine();
            string cipher = Console.ReadLine();
            StringBuilder result = new StringBuilder();
            for (int i = 0,j=0; i < input.Length; i++,j++)
            {
                if (j>=cipher.Length)
                {
                    j = 0;
                }
                int temp = (int)input[i] ^ (int)cipher[j];
                result.Append(String.Format("\\u{0:x4} ", temp).Trim());

            }
            Console.WriteLine(result);
        }
    }
}