//inlclude前用define 
#define _USE_MATH_DEFINES

//include
#include<iostream>
#include<string>
#include<algorithm>
#include<vector>
#include<cmath>
#include<cstdio>
#include<type_traits>
#include<numeric>
#include<limits>
#include<iomanip>
using namespace std;
//typedef
typedef vector<int> VI;
typedef vector<string> VS;
typedef vector<char> VC;

//grobal変数


int main() {
	string s;
	int i,j;
	cin >> s;
	cin >> i >> j;

	char tmp;
	tmp = s[i];
	s[i] = s[j];
	s[j] = tmp;
	cout << s << endl;

	return 0;
}