#include<iostream>
#include<vector>
#include<algorithm>
#include<functional>
#include<queue>
#include<stack>
#include<set>
#include<climits>
#include<cstdlib>
#include<cmath>
#include<string>

using namespace std;

#define INF 1 << 29
#define LL long long int

LL const MOD = 1000000007;

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

    string str;
    cin >> str;

    LL a,b;
    cin >> a >> b;

    char tmp = str[a];
    str[a] = str[b];
    str[b] = tmp;

    cout << str << endl;
    
    return 0;
}