#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
#include <queue>
#include <cmath>
#include <map>

int main(void) {

	std::string s;
	int i, j;

	std::cin >> s >> i >> j;

	std::swap(s[i], s[j]);

	std::cout << s << std::endl;
	return 0;
}