#include <bits/stdc++.h>
#define ll long long
#define PB push_back
#define FOR(i,a,b) for(int i=a;i<b;i++)
using namespace std;

int m[300000];
vector<int> v;
int main(){
    string s;
    int i,j;
    cin>>s>>i>>j;
    swap(s[i],s[j]);
    cout<<s<<endl;
    return 0;
}