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#include <bits/stdc++.h>
using namespace std;
string a, b, c;
vector<int> takenb;
vector<int> takenc;
int ff(char c, string& sd) {
  for (int i = 0; i < sd.size(); i++) {
    if (sd[i] == c) return i;
  }
  return sd.size();
}
string rest(string s, string& x, int* nn) {
  string ss = s;
  bool end = true;
  for (int i = 0; i < x.size(); i++) {
    int w = ff(x[i], ss);
    if (w != ss.size()) {
      ss.erase(w, 1);
    } else {
      end = false;
      break;
    }
  }
  if (end) {
    int newnn;
    string rets = rest(ss, x, &newnn);
    *nn = newnn + 1;
    return rets;
  } else {
    *nn = 0;
    return s;
  }
}
string mul(int x, string s) {
  string r;
  for (int i = 0; i < x; i++) r += s;
  return r;
}
int main() {
  getline(cin, a);
  getline(cin, b);
  getline(cin, c);
  int x, y, n;
  string r = rest(a, b, &x);
  string _r = rest(r, c, &y);
  n = x + y;
  string rr = rest(a, c, &x);
  string _rr = rest(rr, b, &y);
  if (x + y < n) {
    cout << mul(x, b) + mul(y, c) + _r << endl;
  } else
    cout << mul(x, c) + mul(y, b) + _rr << endl;
  return 0;
}
