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import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class ZgukistringZ {
	static int[] characters;
	static String aa, bb, cc;

	public static void main(String[] args) throws IOException {

		Scanner sc = new Scanner(System.in);
		aa = sc.nextLine();
		bb = sc.nextLine();
		cc = sc.nextLine();

		char[] a = aa.toCharArray();
		char[] b = bb.toCharArray();
		char[] c = cc.toCharArray();
		characters = new int[26];

		for (int i = 0; i < a.length; i++)
			characters[a[i] - 97]++;
		StringBuffer sb = new StringBuffer();

		if (b.length > c.length) {
			sb.append(ans(b, bb));
			sb.append(ans(c, cc));

		} else {
			sb.append(ans(c, cc));
			sb.append(ans(b, bb));

		}

		for (int i = 0; i < characters.length; i++)
			if (characters[i] > 0)
				for (int j = 0; j < characters[i]; j++)
					sb.append((char) (i + 97));

		System.out.println(sb.toString());

	}

	static String ans(char[] b, String x) {
		boolean flag = true;
		int min = (int) 1e9;
		StringBuffer sb = new StringBuffer();
		int pos = 0;
		for (int i = 0; i < b.length; i++) {
			if (characters[b[i] - 97] <= 0) {
				flag = false;
				pos = i;
				break;
			} else {
				min = Math.min(min, characters[b[i] - 97]);
				characters[b[i] - 97]--;
			}

		}
		if (!flag) {
			for (int i = 0; i < pos; i++)
				characters[b[i] - 97]++;

		} else {
			for (int i = 0; i < b.length; i++)
				characters[b[i] - 97] -= min - 1;
			for (int i = 0; i < min; i++)
				sb.append(x);

		}

		return sb.toString();

	}

	static class Scanner {

		StringTokenizer st;
		BufferedReader br;

		public Scanner(InputStream System) {
			br = new BufferedReader(new InputStreamReader(System));
		}

		public String next() throws IOException {
			while (st == null || !st.hasMoreTokens())
				st = new StringTokenizer(br.readLine());
			return st.nextToken();
		}

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

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

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

		public char nextChar() throws IOException {
			return next().charAt(0);
		}

		public Long nextLong() throws IOException {
			return Long.parseLong(next());
		}

		public boolean ready() throws IOException {
			return br.ready();
		}

		public void waitForInput() {
			for (long i = 0; i < 3e9; i++)
				;
		}
	}
}
