#include <bits/stdc++.h>
#define REP(i, n) for(int i = 0; i < n; i++)
#define REPR(i, n) for(int i = n; i >= 0; i--)
#define FOR(i, m, n) for(int i = m; i < n; i++)
#define INF 2e9
#define ALL(v) v.begin(), v.end()
using namespace std;
typedef long long ll;
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    string s;
    cin >> s;

    int i, j;
    cin >> i >> j;

    char temp;

    temp = s[i];
    s[i] = s[j];
    s[j] = temp;

    cout << s << endl;


}