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import java.util.Scanner;

/**
 * Created by slycer on 9/21/15.
 */
public class ZgukistringZ {

    public static String sol = "";
    public static int match = 0;

    public  static void main ( String [] arg ){
        Scanner s = new Scanner ( System.in );
        String a = s.nextLine();
        String b = s.nextLine();
        String c = s.nextLine();

        solve ( a, b, c );
        solve( a, c, b );
        System.out.println( sol );
    }

    public static void solve( String a, String first, String second ){
        int [] count = new int[128];
        for ( int i=0; i<a.length(); i++ ){
            count[ a.charAt(i) ]++;
        }

        String currentSol = "";
        int  currentMatch = 0;
        while ( canSubstract(count, first ) ){
            substract( count, first );
            currentSol += first;
            currentMatch ++;
        }
        while ( canSubstract( count, second ) ){
            substract( count, second );
            currentSol += second;
            currentMatch ++;
        }

        for ( int i=0; i<count.length; i++ ){
            while ( count[i] > 0 ){
                count[i] --;
                currentSol += (char)i;
            }
        }

        if ( currentMatch >= match ){
            sol = currentSol;
        }

    }

    public static int [] substract( int [] a, String substract ){
        for ( int i=0; i<substract.length(); i++ ){
            a[ substract.charAt(i) ] --;
        }
        return a;
    }

    public static boolean canSubstract( int [] a, String toSubstract ){
        for ( int i=0; i<toSubstract.length(); i++ ){
            if ( a[ toSubstract.charAt(i) ] == 0 ){
                return false;
            }
        }
        return true;
    }

}
