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import java.io.*;
import java.util.*;

public class CodeForces {

	public void solve() throws IOException {
		int source[] = new int[26];
		int sourceCopy[] = new int[26];
		int w1[] = new int[26];
		int w2[] = new int[26];
		int w1Copy[] = new int[26];
		int w2Copy[] = new int[26];
		StringBuffer sb = new StringBuffer();
		StringBuffer sbCopy = new StringBuffer();

		String s1 = nextToken();
		for (int i = 0; i < s1.length(); i++) {
			source[s1.charAt(i) - 'a']++;
			sourceCopy[s1.charAt(i) - 'a']++;
		}

		s1 = nextToken();
		for (int i = 0; i < s1.length(); i++) {
			w1[s1.charAt(i) - 'a']++;
			w1Copy[s1.charAt(i) - 'a']++;
		}

		String s2 = nextToken();
		for (int i = 0; i < s2.length(); i++) {
			w2[s2.charAt(i) - 'a']++;
			w2Copy[s2.charAt(i) - 'a']++;
		}

		int c1 = createString(w1, w2, source, sb, s1, s2);
		int c2 = createString(w2Copy, w1Copy, sourceCopy, sbCopy, s2, s1);

		if (c1 > c2) {
			System.out.println(sb.toString());
		} else {
			System.out.println(sbCopy.toString());
		}

	}

	int createString(int w1[], int w2[], int tArr[], StringBuffer sb,
			String s1, String s2) {
		int counter = 0;
		while (canWord(tArr, w1)) {
			counter++;
			takeWord(tArr, w1);
			sb.append(s1);
		}

		while (canWord(tArr, w2)) {
			counter++;
			takeWord(tArr, w2);
			sb.append(s2);
		}

		for (int i = 0; i < tArr.length; i++) {
			int num = tArr[i];
			for (int j = 0; j < num; j++) {
				sb.append((char) ('a' + i));
			}
		}

		return counter;
	}

	boolean canWord(int sArr[], int tArr[]) {
		for (int i = 0; i < tArr.length; i++) {
			if (tArr[i] > sArr[i]) {
				return false;
			}
		}
		return true;
	}

	void takeWord(int sArr[], int tArr[]) {
		for (int i = 0; i < tArr.length; i++) {
			sArr[i] -= tArr[i];
		}
	}

	public static void main(String[] args) {
		new CodeForces().run();
	}

	int NOD(int a, int b) {
		while (a != 0 && b != 0) {
			if (a >= b)
				a = a % b;
			else
				b = b % a;
		}
		return a + b;
	}

	BufferedReader reader;
	StringTokenizer tokenizer;
	PrintWriter out;
	boolean isOuterFile = false;

	public void run() {
		try {
			if (isOuterFile) {
				reader = new BufferedReader(new FileReader(
						"C:\\work\\javaprojects\\CodeForces\\SCC.txt"));
				// out = new PrintWriter(new BufferedWriter(new FileWriter(
				// "output.txt")));
				// out = new PrintWriter(System.out);
			} else {
				reader = new BufferedReader(new InputStreamReader(System.in));
				out = new PrintWriter(System.out);
			}

			tokenizer = null;

			// long time = System.currentTimeMillis();
			solve();
			// out.println(System.currentTimeMillis() - time);
			reader.close();
			out.close();
		} catch (Exception e) {
			e.printStackTrace();
			System.exit(1);
		}
	}

	int nextInt() throws IOException {
		return Integer.parseInt(nextToken());
	}

	long nextLong() throws IOException {
		return Long.parseLong(nextToken());
	}

	double nextDouble() throws IOException {
		return Double.parseDouble(nextToken());
	}

	String nextToken() throws IOException {
		while (tokenizer == null || !tokenizer.hasMoreTokens()) {
			tokenizer = new StringTokenizer(reader.readLine());
		}
		return tokenizer.nextToken();
	}

	String nextLine() throws IOException {
		return reader.readLine();
	}
}