#include <stdio.h>
#include <algorithm>
#include <iostream>
#include <string>
#include <vector>
#include <functional>
#include <map>
#include <iomanip>
#include <math.h> 
#include <stack>
#include <queue>
#include <bitset>
#include <cstdlib>
#include <tuple>
#include <cctype>
#include <ctype.h>
#include <set>
#include <sstream>

using namespace std;


int main() {
	int i, j, k;   
	string s;
	int ii, jj;

	cin >> s;
	cin >> ii >> jj;

	char chi = s[ii];
	char chj = s[jj];

	s[ii] = chj;
	s[jj] = chi;

	cout << s << endl;



	getchar();
	getchar();
	return 0;
}