#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <math.h>
#include <iomanip>

using namespace std;

int main(){
	string s;
	cin >> s;
	int i,j;
	cin >> i >> j;
	char temp;
	temp=s[i];
	s[i]=s[j];
	s[j]=temp;
	cout << s << endl;
	return 0;
}