package adv2018;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.InputMismatchException;
import java.util.List;
import java.util.TreeSet;

public class Day23_3 {
	InputStream is;
	PrintWriter out;
	String INPUT = "";
	
	static class State
	{
		String s;
		int[] rem;
	}
	
	void solve()
	{
		int n = ni(), K = ni();
		int[] a = na(n);
		
		int[] f = new int[100];
		for(int v : a)f[v]++;
		
		String[] sa = new String[n];
		for(int i = 0;i < n;i++)sa[i] = "" + a[i];
		
		int len = 0;
		for(int i = 0;i < n;i++)len += sa[i].length();
		
		Comparator<State> comp = (x, y) -> x.s.compareTo(y.s);
		
		State ini = new State();
		ini.s = "";
		ini.rem = f;
		TreeSet<State> q = new TreeSet<>(comp);
		q.add(ini);
		
		List<TreeSet<State>> lq = new ArrayList<>();
		lq.add(q);
		for(int i = 0;i < len;i++){
			TreeSet<State> oq = new TreeSet<>(comp);
			lq.add(oq);
		}
		
		int W = 2000;
		for(int i = 0;i < len;i++){
			for(State s : lq.get(i)){
				for(int j = 1;j <= 99;j++){
					if(s.rem[j] > 0){
						String nex = s.s + j;
						int[] nrem = Arrays.copyOf(s.rem, 100);
						nrem[j]--;
						
						int nlen = i + (j >= 10 ? 2 : 1);
						State ns = new State();
						ns.s = nex;
						ns.rem = nrem;
						if(lq.get(nlen).contains(ns)){
							State bef = lq.get(nlen).ceiling(ns);
							int bal = 0;
							for(int k = 1;k <= 99;k++){
								bal -= nrem[k];
								bal += bef.rem[k];
							}
							if(bal < 0){
								bef.rem = nrem;
							}
						}else{
							lq.get(nlen).add(ns);
							if(lq.get(nlen).size() > W){
								lq.get(nlen).pollFirst();
							}
						}
					}
				}
			}
		}
		
		TreeSet<State> last = lq.get(len);
		for(int i = 0;i < K;i++){
			out.println(last.pollLast().s);
		}
	}
	
	void run() throws Exception
	{
//		int n = 99, m = 99999;
//		Random gen = new Random();
//		StringBuilder sb = new StringBuilder();
//		sb.append(n + " " + 1000 + "\n");
//		for (int i = 0; i < n/2; i++) {
//			sb.append(77 + " ");
//		}
//		for (int i = 0; i < n/2; i++) {
//			sb.append(7 + " ");
//		}
//		sb.append(67 + " ");
//		INPUT = sb.toString();

		
		is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
		out = new PrintWriter(System.out);
		
		long s = System.currentTimeMillis();
		solve();
		out.flush();
		if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
//		Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){
//			@Override
//			public void run() {
//				long s = System.currentTimeMillis();
//				solve();
//				out.flush();
//				if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
//			}
//		};
//		t.start();
//		t.join();
	}
	
	public static void main(String[] args) throws Exception { new Day23_3().run(); }
	
	private byte[] inbuf = new byte[1024];
	public int lenbuf = 0, ptrbuf = 0;
	
	private int readByte()
	{
		if(lenbuf == -1)throw new InputMismatchException();
		if(ptrbuf >= lenbuf){
			ptrbuf = 0;
			try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); }
			if(lenbuf <= 0)return -1;
		}
		return inbuf[ptrbuf++];
	}
	
	private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); }
	private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; }
	
	private double nd() { return Double.parseDouble(ns()); }
	private char nc() { return (char)skip(); }
	
	private String ns()
	{
		int b = skip();
		StringBuilder sb = new StringBuilder();
		while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ')
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}
	
	private char[] ns(int n)
	{
		char[] buf = new char[n];
		int b = skip(), p = 0;
		while(p < n && !(isSpaceChar(b))){
			buf[p++] = (char)b;
			b = readByte();
		}
		return n == p ? buf : Arrays.copyOf(buf, p);
	}
	
	private int[] na(int n)
	{
		int[] a = new int[n];
		for(int i = 0;i < n;i++)a[i] = ni();
		return a;
	}
	
	private long[] nal(int n)
	{
		long[] a = new long[n];
		for(int i = 0;i < n;i++)a[i] = nl();
		return a;
	}
	
	private char[][] nm(int n, int m) {
		char[][] map = new char[n][];
		for(int i = 0;i < n;i++)map[i] = ns(m);
		return map;
	}
	
	private int[][] nmi(int n, int m) {
		int[][] map = new int[n][];
		for(int i = 0;i < n;i++)map[i] = na(m);
		return map;
	}
	
	private int ni() { return (int)nl(); }
	
	private long nl()
	{
		long num = 0;
		int b;
		boolean minus = false;
		while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
		if(b == '-'){
			minus = true;
			b = readByte();
		}
		
		while(true){
			if(b >= '0' && b <= '9'){
				num = num * 10 + (b - '0');
			}else{
				return minus ? -num : num;
			}
			b = readByte();
		}
	}
	
	private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); }
}