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#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e5 + 256;
const char nxt = '\n';
inline void in(string Q) {
  Q += ".in";
  freopen(Q.c_str(), "r", stdin);
}
inline void out(string Q) {
  Q += ".out";
  freopen(Q.c_str(), "w", stdout);
}
inline void open_file(string Q) {
  in(Q);
  out(Q);
}
string a, b, s;
int M[1000], Q[1000], mn = INT_MAX;
set<char> W;
int check(string X) {}
void init(int &x) {
  memset(Q, 0, sizeof Q);
  W.clear();
  if (x == INT_MAX) x = 0;
}
string solve1() {
  string ret = "";
  for (auto to : a) {
    M[to]++;
  }
  for (auto to : b) {
    Q[to]++;
    W.insert(to);
  }
  for (char c = 'a'; c <= 'z'; ++c) {
    if (Q[c] == 0) continue;
    if (Q[c] > M[c]) {
      mn = INT_MAX;
      break;
    }
    mn = min(mn, M[c]);
  }
  if (mn < INT_MAX) {
    for (auto to : W) {
      M[to] -= mn;
    }
  }
  init(mn);
  while (mn--) {
    ret += b;
  }
  mn = INT_MAX;
  for (auto to : s) {
    Q[to]++;
    W.insert(to);
  }
  for (char c = 'a'; c <= 'z'; ++c) {
    if (Q[c] == 0) continue;
    if (Q[c] > M[c]) {
      mn = INT_MAX;
      break;
    }
    mn = min(mn, M[c]);
  }
  if (mn < INT_MAX) {
    for (auto to : W) {
      M[to] -= mn;
    }
  }
  init(mn);
  while (mn--) {
    ret += s;
  }
  for (char c = 'a'; c <= 'z'; ++c) {
    while (M[c]--) {
      ret += c;
    }
  }
  init(mn);
  memset(M, 0, sizeof M);
  return ret;
}
int main() {
  if (0) open_file("");
  cin >> a >> b >> s;
  string F = solve1();
  cout << F;
  return 0;
}
