#include<bits/stdc++.h>
using namespace std;

const long long INF = 1LL << 60;
#define MOD 1000000007;

typedef long long ll;

#define writeln(n) cout<<n<<endl;

typedef pair<float, float> P;

typedef pair<string, int> Psi;

int d[15];
int main() {

	string s;
	cin>>s;

	int a,b;
	cin>>a>>b;

	char tmp = s[a];

	s[a] = s[b];

	s[b] = tmp;

	writeln(s);


}