#include <algorithm>
#include <cfloat>
#include <climits>
#include <cmath>
#include <complex>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <functional>
#include <iostream>
#include <map>
#include <memory>
#include <queue>
#include <deque>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <utility>
#include <vector>
#include <cassert>
 
using namespace std;
 
#define sz size()
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define all(c) (c).begin(), (c).end()
#define rep(i,a,b) for(long long i=(a);i<(b);++i)
#define clr(a, b) memset((a), (b) ,sizeof(a))
 
#define MOD 1000000007

int main(){
  string s;
  int t,u;
  cin>>s;
  cin>>t>>u;
  if(s.sz>50)return -1;
  if(t>=s.sz||u>=s.sz)return -1;
  int n1 = min(t,u);
  int n2 = max(t,u);
  if(n1!=n2)s.erase(s.begin()+n2);
  s.erase(s.begin()+n1);
  cout << s << endl;
  return 0;
}