#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define rep(i,n) for(int (i)=0;(i)<(n);(i)++)

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