#include <iostream>
#include <string>
using namespace std;
int main(){
	string S;
	cin>>S;
	int x,y;
	cin>>x>>y;
	char c1=S[x];
	char c2=S[y];
	S[x]=c2;
	S[y]=c1;
	cout<<S<<endl;
	return 0;
}