#include <bits/stdc++.h>

using namespace std;

using ll = long long;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    string s;
    cin >> s;
    int i, j;
    cin >> i >> j;
    swap(s[i], s[j]);
    cout << s << endl;
    return 0;
}