#include <iostream>
#include <string>
using namespace std;
int main(int argc, char* argv[])
{
	string S;
	cin>>S;
	int i,j;
	cin>>i>>j;
	char ch=S[i];
	S[i]=S[j];
	S[j]=ch;
	cout<<S<<endl;
	return 0;
}