class Program
{
    static void Main(string[] args)
    {
        string input = Console.ReadLine()!;
        string[] inputNums = Console.ReadLine()!.Split(' ');
        int changeNum1 = int.Parse(inputNums[0]);
        int changeNum2 = int.Parse(inputNums[1]);
        List<char> wordList = new List<char>();

        foreach (char c in input)
        {
            wordList.Add(c);
        }

        char tmp = wordList[changeNum1];
        wordList[changeNum1] = wordList[changeNum2];
        wordList[changeNum2] = tmp;

        for (int i = 0; i < wordList.Count; i++)
        {
            Console.Write(wordList[i]);
        }
        Console.WriteLine();
    }
}