import java.io.*;

public class railway {

	InputStreamReader isr = new InputStreamReader(System.in);
	BufferedReader br = new BufferedReader(isr);
	
	public int[] readInt() throws IOException {
		String vstup = br.readLine();
		String []rozdel = vstup.split("\t| ");
		int []vrat = new int[rozdel.length];
		for (int i = 0; i < rozdel.length; i++) {
			vrat[i] = Integer.parseInt(rozdel[i].trim());
		}
		return vrat;		
	}
	
	public void solve() throws IOException{
	  while (true) {
		int []citaj = readInt();
		int vozen = citaj[0];
		int kolaji = citaj[1];
		if (vozen == 0 && kolaji == 0) break;
		int []poradie = readInt();
		int [][]ries = new int[kolaji][vozen + 2];
		for (int i = 0; i < kolaji; i++) {
			for (int j = 0; j < 2; j++) {
				ries[i][j] = 0; 			
			}
		}	
		boolean chyba = false; 
		String vys = new String();
		for (int i = 0; i < vozen; i++) {
			for (int j = 0; j <= kolaji; j++) {
				if (j == kolaji) {
					chyba = true;
					System.out.println("Transportation failed");	
					break;			
				} 
				if (ries[j][1] == 0) {
					ries[j][0] = poradie[i];
					(ries[j][1])++;
					ries[j][1 + ries[j][1]] = poradie[i];;
					vys = vys + (j+1) + " ";
					break;
				}
				else {
					if (ries[j][0] <= poradie[i]) {
						ries[j][0] = poradie[i];;
						(ries[j][1])++;
						ries[j][1 + ries[j][1]] = poradie[i];;
						vys = vys + String.valueOf(j+1) + " ";	
						break;				
					}  				
				}
				
			}
			if (chyba) break;
		}
		if (chyba == false) {
			System.out.println(vys);
			for (int i = 0; i < vozen; i++) {
				int max = 200001;
				int index = 0;
				for (int j = 0; j < kolaji; j++) {
					if (ries[j][1] != 0) {
						if (ries[j][ries[j][1] + 1] < max) {
							max = ries[j][ries[j][1] + 1];
							index = j;						
						} 					
					}				
				}
				System.out.print((index + 1) + " ");
				(ries[index][1])--;		
			}
			System.out.println();		
		}
	  }
	}

	public static void main(String[] args) throws IOException{
		// TODO Auto-generated method stub
		railway r = new railway();
		r.solve();
	}

}