7 2
-10 0 ? 1 ? 2 10
 1 1
0
 5 1
-3 -2 -1 0 1
 7 1
-4 ? ? ? ? ? 2
 17 1
? -13 ? ? ? -3 ? ? ? ? ? 10 ? ? ? ? 100
 3 1
-5 ? 0
 7 2
-10 0 ? 1 6 2 ?
 3 1
-3 ? -2
 6 1
-1 ? 1 2 3 4
 1 1
?
 9 2
-10 0 ? 1 ? 2 ? 3 ?
 10 2
3 ? 5 ? 7 ? 9 ? 11 ?
 9 2
? ? -10 ? ? ? 10 ? ?
 9 3
? ? ? ? ? ? ? ? ?
 7 2
? ? 10 ? ? ? ?
 5 1
1000000000 ? ? ? ?
 7 3
1 ? -1000000000 ? 100 ? 2
 7 2
? ? -10 ? ? ? ?
 39 3
-5 1 -13 ? 2 -12 ? 3 -11 -2 4 -10 ? 5 -9 0 6 -8 ? 7 -7 ? 8 -6 5 9 -5 ? 10 -4 ? 11 -3 ? 12 -2 10 13 -1
 7 2
? ? 10 ? -10 ? ?
 7 1
-2 ? ? ? ? ? 4
 7 2
-10 0 0 1 ? 2 ?
 9 2
-10 0 ? 1 -6 2 ? 3 ?
 7 3
1 ? -1000000000 ? 100 ? 3
 9 2
-10 0 ? 1 ? 2 ? 3 0
 9 2
10 0 ? 1 ? 2 ? 3 ?
 3 1
-1 ? 1
 10 1
-2 ? ? ? ? ? ? 5 ? 10
 5 2
? ? -1000000000 ? ?
 2 1
-1000000000 1000000000
 7 2
-10 0 ? 1 -6 2 ?
 5 4
-1 ? ? ? 2
 7 2
10 0 ? 1 ? 2 ?
 7 2
-10 0 ? 1 ? 2 0
 7 2
-10 0 ? 1 ? 2 ?
 7 2
? ? -10 ? 10 ? ?
 6 1
-3 ? ? ? ? 3
 9 2
-10 0 ? 1 ? 2 ? 3 10
 3 1
4 ? 5
 9 3
-5 0 -1 ? ? ? 0 5 1
 7 1
-3 ? ? ? ? ? 3

-10 0 -1 1 0 2 10
 0
 -3 -2 -1 0 1
 -4 -3 -2 -1 0 1 2
 -14 -13 -6 -5 -4 -3 -2 -1 0 1 2 10 11 12 13 14 100
 -5 -1 0
 -10 0 0 1 6 2 7
 Incorrect sequence
 -1 0 1 2 3 4
 0
 -10 0 -2 1 -1 2 0 3 1
 3 -2 5 -1 7 0 9 1 11 2
 -11 -2 -10 -1 0 0 10 1 11
 -1 -1 -1 0 0 0 1 1 1
 0 -1 10 0 11 1 12
 1000000000 1000000001 1000000002 1000000003 1000000004
 Incorrect sequence
 -11 -1 -10 0 -1 1 0
 -5 1 -13 -4 2 -12 -3 3 -11 -2 4 -10 -1 5 -9 0 6 -8 1 7 -7 2 8 -6 5 9 -5 6 10 -4 7 11 -3 8 12 -2 10 13 -1
 Incorrect sequence
 -2 -1 0 1 2 3 4
 -10 0 0 1 1 2 2
 -10 0 -7 1 -6 2 -1 3 0
 1 0 -1000000000 2 100 0 3
 -10 0 -3 1 -2 2 -1 3 0
 10 0 11 1 12 2 13 3 14
 -1 0 1
 -2 -1 0 1 2 3 4 5 6 10
 -1000000001 -1 -1000000000 0 0
 -1000000000 1000000000
 -10 0 -7 1 -6 2 0
 -1 0 0 0 2
 10 0 11 1 12 2 13
 -10 0 -2 1 -1 2 0
 -10 0 -1 1 0 2 1
 -11 -1 -10 0 10 1 11
 -3 -2 -1 0 1 3
 -10 0 -1 1 0 2 1 3 10
 Incorrect sequence
 -5 0 -1 -1 1 0 0 5 1
 -3 -2 -1 0 1 2 3 


import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
import java.util.Vector;

/*
public class _518E {

}

 */

public class _518E {
	public void solve() throws FileNotFoundException {
		InputStream inputStream = System.in;

		InputHelper inputHelper = new InputHelper(inputStream);

		PrintStream out = System.out;

		//actual solution
		int n = inputHelper.readInteger();
		int k = inputHelper.readInteger();
		
		Integer[] a = new Integer[n];
		for(int i = 0; i < n; i++)
		{
			String s = inputHelper.read();
			
			if(!"?".equals(s))
			{
				a[i] = Integer.parseInt(s);
			}
			else
			{
				a[i] = null;
			}
		}

		for(int i = 0; i < k ; i++)
		{
			if(a[i] == null)
			{
				a[i] = (int)-2e9;
			}
			for(int j = i + k; j < n ; j += k)
			{
				if(a[j] == null)
				{
					a[j] = a[j - k] + 1;
				}
				else
				{
					if(a[j] <= a[j - k])
					{
						System.out.println("Incorrect sequence");
						return;
					}
				}
			}
		}
		
		for(int i = 0; i < k; i++)
		{
			if(a[i] == -2e9)
			{
				List<Integer> l = new ArrayList<Integer>();
				l.add(a[i]);
				
				int j;
				for(j = i + k; j < n; j += k)
				{
					if(a[j] < -1e9)
					{
						l.add(a[j]);
					}
					else
					{
						break;
					}
				}
				
				int[] fa;
				
				if(j < n)
				{
					fa = norm(l, a[j]);
				}
				else
				{
					fa = norm(l, (int)2e9);
				}
				
				for(j = i, k = 0; k < fa.length; j += k, k++)
				{
					a[j] = fa[k];
				}
			}
		}
		
		for(int i = 0; i < n; i++)
		{
			System.out.print(a[i] + " ");
		}
		
		System.out.println();
		//end here
	}

	private int[] norm(List<Integer> l, int max) {
		double avg = 0;
		
		for(int i = 0; i < l.size(); i++)
		{
			avg += l.get(i);
		}
		
		avg /= l.size();
		
		int avgi = (int) Math.round(avg);
		
		int[] fa = new int[l.size()];
		
		for(int i = 0; i < l.size(); i++)
		{
			fa[i] = l.get(i) - avgi;
		}
		
		if(fa[l.size() - 1] >= max)
		{
			fa[l.size() - 1] = max - 1;
			for(int i = l.size() - 2; i >= 0; i--)
			{
				fa[i] = fa[i + 1] - 1;
			}
		}
		
		return fa;
	}

	public static void main(String[] args) throws FileNotFoundException {
		(new _518E()).solve();
	}

	class InputHelper {
		StringTokenizer tokenizer = null;
		private BufferedReader bufferedReader;

		public InputHelper(InputStream inputStream) {
			InputStreamReader inputStreamReader = new InputStreamReader(
					inputStream);
			bufferedReader = new BufferedReader(inputStreamReader, 16384);
		}

		public String read() {
			while (tokenizer == null || !tokenizer.hasMoreTokens()) {
				try {
					String line = bufferedReader.readLine();
					if (line == null) {
						return null;
					}
					tokenizer = new StringTokenizer(line);
				} catch (IOException e) {
					e.printStackTrace();
				}
			}

			return tokenizer.nextToken();
		}

		public Integer readInteger() {
			return Integer.parseInt(read());
		}

		public Long readLong() {
			return Long.parseLong(read());
		}
	}
}