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#include <bits/stdc++.h>
using namespace std;
string a, b, c;
int mn = 0;
int cnt1[100000], cnt2[100000], cnt3[100000];
vector<string> res;
int main() {
  cin >> a >> b >> c;
  for (int i = 0; i < a.length(); i++) {
    cnt1[a[i]]++;
  }
  for (int i = 0; i < b.length(); i++) {
    cnt2[b[i]]++;
  }
  for (int i = 0; i < c.length(); i++) {
    cnt3[c[i]]++;
  }
  for (int i = 0; i < b.length(); i++) {
    if (cnt1[b[i]] < mn) {
      mn = cnt1[b[i]];
    }
  }
  for (int i = 0; i < mn; i++) res.push_back(b);
  for (int i = 0; i < b.length(); i++) {
    cnt1[b[i]] -= mn;
  }
  mn = 0;
  for (int i = 0; i < c.length(); i++) {
    if (cnt1[c[i]] < mn) {
      mn = cnt1[c[i]];
    }
  }
  for (int i = 0; i < mn; i++) res.push_back(c);
  for (int i = 0; i < c.length(); i++) {
    cnt1[c[i]] -= mn;
  }
  for (int i = 0; i < res.size(); i++) {
    cout << res[i];
  }
  for (int i = 0; i < a.length(); i++) {
    if (cnt1[a[i]]) {
      cout << char(a[i]);
    }
  }
  return 0;
}
