#include <iostream>
#include <math.h>
#include <string>
#include <algorithm>
#include <set>
#include <queue>
#include <stack>
#include <utility>
#include <tuple>
using namespace std;

const double pi = acos(-1);
#define nyan cout<<"(=^•ω•^=)"<<endl;
#define int long long
#define rep(i,n) for(int i=0;i<n;i++)

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