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#include <bits/stdc++.h>
using namespace std;
template <class T>
inline bool read(T &x) {
  int c = getchar();
  int sgn = 1;
  while (~c && c < '0' || c > '9') {
    if (c == '-') sgn = -1;
    c = getchar();
  }
  for (x = 0; ~c && '0' <= c && c <= '9'; c = getchar()) x = x * 10 + c - '0';
  x *= sgn;
  return ~c;
}
int X[] = {-1, -1, -1, 0, 1, 1, 1, 0};
int Y[] = {-1, 0, +1, 1, 1, 0, -1, -1};
string a, b, c;
int freq[30];
string ans;
void process(string t) {
  int f[30];
  (memset(f, 0, sizeof(f)));
  for (int i = 0; i < t.size(); i++) {
    f[t[i] - 'a']++;
  }
  while (1) {
    for (int i = 0; i <= 26; i++) {
      if (freq[i] < f[i] or (f[i] and !freq[i])) return;
    }
    for (int i = 0; i < t.size(); i++) {
      ans.push_back(t[i]);
      freq[t[i] - 'a']--;
    }
  }
}
int main() {
  cin >> a >> b >> c;
  (memset(freq, 0, sizeof(freq)));
  for (int i = 0; i < a.size(); i++) {
    freq[a[i] - 'a']++;
  }
  if (b.size() > c.size()) swap(a, b);
  process(b);
  process(c);
  for (int i = 0; i < 26; i++) {
    while (freq[i] > 0) {
      freq[i]--;
      ans.push_back(char(i + 'a'));
    }
  }
  cout << ans << endl;
  return 0;
}
