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#include <bits/stdc++.h>
using namespace std;
int main() {
  int outa = 0, outb = 0, max;
  char a[100005], b[100005], c[100005];
  scanf("%s %s %s", a, b, c);
  int counta[26] = {0}, countb[26] = {0}, countc[26] = {0};
  for (int i = 0; a[i] != '\0'; ++i) counta[a[i] - 'a']++;
  for (int i = 0; b[i] != '\0'; ++i) countb[b[i] - 'a']++;
  for (int i = 0; c[i] != '\0'; ++i) countc[c[i] - 'a']++;
  while (1) {
    int i;
    for (i = 0; i < 26; ++i) {
      if (counta[i] - countb[i] >= 0)
        counta[i] = counta[i] - countb[i];
      else
        break;
    }
    i--;
    if (i == 25)
      outa++;
    else {
      for (; i >= 0; --i) counta[i] += countb[i];
      break;
    }
  }
  while (1) {
    int i, j = 0;
    for (i = 0; i < 26; ++i) counta[i] = counta[i] + countb[i];
    while (1) {
      for (i = 0; i < 26; ++i)
        if (counta[i] - countc[i] >= 0)
          counta[i] = counta[i] - countc[i];
        else
          break;
      i--;
      if (i == 25)
        j++;
      else {
        for (; i >= 0; --i) counta[i] += countc[i];
        break;
      }
    }
    if (j > 0) {
      outa -= 1;
      outb += j;
    } else {
      for (i = 0; i < 26; ++i) counta[i] = counta[i] - countb[i];
      break;
    }
  }
  while (outa > 0) {
    printf("%s", b);
    outa--;
  }
  while (outb > 0) {
    printf("%s", c);
    outb--;
  }
  for (int i = 0; i < 26; ++i) {
    while (counta[i] > 0) {
      printf("%c", 'a' + i);
      counta[i]--;
    }
  }
  printf("\n");
  return 0;
}
