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#include <bits/stdc++.h>
#pragma comment(linker, "/STACK:1024000000,1024000000")
#define mem(a,b) memset((a),(b),sizeof(a))
#define MP make_pair
#define pb push_back
#define fi first
#define se second
#define sz(x) x.size()
#define all(x) x.begin(),x.end()
using namespace std;
#define _GLIBCXX_PERMIT_BACKWARD_HASH
#include <ext/hash_map>
using namespace __gnu_cxx;
struct str_hash{size_t operator()(const string& str)const{return __stl_hash_string(str.c_str());}};
typedef long long ll;
typedef unsigned long long ull;
#define PII pair<int,int>
#define PLL pair<ll,ll>
#define PDD pair<double,double>
const int INF=0x3f3f3f3f;
const ll LLINF=0x3f3f3f3f3f3f3f3f;
const double PI=acos(-1.0);
const double eps=1e-8;
const int MAX=1e5+10;
const ll mod=1e9+7;
char s[MAX],a[MAX],b[MAX];
int main()
{
	int i,len,cnt[333];
	while(~scanf("%s%s%s",s,a,b))
	{
		mem(cnt,0);
		len=strlen(s);
		for(i=0;i<len;i++) cnt[s[i]]++;
		len=strlen(a);
		while(1)
		{
			int flag=0;
			for(i=0;i<len;i++)
			{
				if(cnt[a[i]])
				{
					putchar(a[i]);
					cnt[a[i]]--;
				}
				else
				{
					flag=1;
					break;
				}
			}
			if(flag) break;
		}
		len=strlen(b);
		while(1)
		{
			int flag=0;
			for(i=0;i<len;i++)
			{
				if(cnt[b[i]])
				{
					putchar(b[i]);
					cnt[b[i]]--;
				}
				else
				{
					flag=1;
					break;
				}
			}
			if(flag) break;
		}
		for(i='a';i<'z';i++)
		{
			while(cnt[i]--) putchar((char)i);
		}
		puts("");
	}
	return 0;
}