#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <stack>
#include <algorithm>
#include <string>
#include <map>
#include <iterator>
#include <set>
#include <queue>
#include <bitset>
#include <cassert>

using namespace std;

int main() {

    string S;
    cin >> S;
    int i, j;
    cin >> i >> j;
    assert(i != j);

    char tmp = S[i];
    S[i] = S[j];
    S[j] = tmp;

    cout << S << endl;

    return 0;
}