#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
template<class T> inline bool chmax(T&a,T b){if(a<b){a=b;return 1;}return 0;}
template<class T> inline bool chmin(T&a,T b){if(a>b){a=b;return 1;}return 0;}
using ll = long long;

int i,j;
string s;

int main () {
    cin.tie(0); ios::sync_with_stdio(false); 

    cin >> s >> i >> j;
    swap(s[i],s[j]);
    cout << s << "\n";
}