#include <bits/stdc++.h>

using namespace std;

int main(void)
{
	cin.tie(0);
	ios::sync_with_stdio(false);

	string s;
	int a, b;

	cin >> s;
	cin >> a >> b;

	char ch = s[a];
	s[a] = s[b];
	s[b] = ch;

	cout << s << '\n';

	return 0;
}