#include "bits/stdc++.h"

using namespace std;
using ll = long long;
using ull = unsigned long long;

typedef pair< long long, long long > P;
typedef pair< long long, P > PP;
typedef pair< P, P > PPP;

const long long MOD = 1e9 + 7;
const  long long  INF = 5e18;
const double DINF = 5e14;
const double eps = 1e-10;
const int di[4] = { 1,0,-1,0 }, dj[4] = { 0,1,0,-1 };

#define ALL(x) (x).begin(),(x).end()
#define ALLR(x) (x).rbegin(),(x).rend()
#define pb push_back
#define eb emplace_back
#define fr first
#define sc second

string s;
int n, m;

int main() {
	cin >> s >> n >> m;
	char c = s[m];
	s[m] = s[n], s[n] = c;
	cout << s << endl;
	return 0;
}