#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=int(a);i<int(b);++i)
using namespace std;
typedef long long ll;
int INF = (1LL << 30) - 1;
int MOD = 1e9+7;
main(){
    string s;
    int a,b;
    cin >> s >> a >> b;
    swap(s[a], s[b]);
    cout << s << endl;
}