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.*;
import java.util.*;

public class D {
	public static void main(String[] args) {new D();}
	
	D () {
		FastScanner fs = new FastScanner();
		PrintWriter out = new PrintWriter(System.out);

		long oo = (long)1e16;
		int n = fs.nextInt();
		int k = fs.nextInt();
		String[] a = fs.nextLine().split(" ");
		long[] res = new long[n];
		boolean[] change = new boolean[n];
		for(int i = 0; i < n; i++) {
			if(a[i].equals("?")) change[i] = true;
			else res[i] = Integer.parseInt(a[i]);
		}

		boolean bad = false;
		
		for(int i = 0; i < k; i++) {

			ArrayList<Long> list = new ArrayList<>();
			for(int j = i; j < n; j += k) {
				if(change[j]) {
					list.add(-oo);
				} else {
					list.add(Long.parseLong(a[j]));
				}
			}
			
			list = getList(list);
			
			if(list == null) {
				System.out.println(i);
				bad = true;
				break;
			}
			
			for(int j = i, idx = 0; j < n; j += k, idx++) {
				res[j] = list.get(idx);
			}
			
		}
		
		if(!valid(res, k) || bad) {
			out.println("Incorrect sequence");
		} else {
			for(int i = 0; i < n; i++) {
				if(i > 0) out.print(" ");
				out.print(res[i]);
			}
		}
		
		out.close();
		
	}
	
	ArrayList<Long> getList (ArrayList<Long> list) {
		long oo = (long)1e16;
		
		for(int i = 0; i < list.size(); i++) {
			if(list.get(i) != -oo) continue;
			int j = i;
			while(j < list.size() && list.get(j) == -oo) {
				j++;
			}
			
			long left = -oo, right = oo;
			if(i > 0) {
				left = list.get(i-1) + 1;
			}
			if(j < list.size()) {
				right = list.get(j) - 1;
			}
			
			int num = j - i;
			long range = right - left - 1;
			
			if(num > Math.abs(range)) {
				return null;
			}
			
			long start = -num / 2;
			if(start < left) start = left;
			if(start > right - num + 1) start = right - num + 1;
			
			for(j = 0; j < num; j++) {
				list.set(j + i, start++);
			}
			
			i = j - 1;
			
		}
		return list;
	}

	boolean valid (long[] a, int k) {
		long sum = 0;
		for(int i = 0; i < k; i++) {
			sum += a[i];
		}
		long last = sum;
		sum = 0;
		for(int i = k; i < a.length; i++) {
			sum = last;
			sum -= a[i - k];
			sum += a[i];
			if(sum <= last) return false;
			last = sum;
		}
		return true;
	}
	
	class FastScanner {
		BufferedReader br;
		StringTokenizer st;
		public FastScanner() {
			try	{
				br = new BufferedReader(new InputStreamReader(System.in));
				//                br = new BufferedReader(new FileReader("testdata.out"));
				st = new StringTokenizer("");
			} catch (Exception e){e.printStackTrace();}
		}
		public String next() {
			if (st.hasMoreTokens())	return st.nextToken();
			try {st = new StringTokenizer(br.readLine());}
			catch (Exception e) {e.printStackTrace();}
			return st.nextToken();
		}
		public int nextInt() {return Integer.parseInt(next());}
		public long nextLong() {return Long.parseLong(next());}
		public double nextDouble() {return Double.parseDouble(next());}

		public String nextLine() {
			String line = "";
			try {line = br.readLine();}
			catch (Exception e) {e.printStackTrace();}
			return line;
		}
		public Integer[] nextIntegerArray(int n) {
			Integer[] a = new Integer[n];
			for(int i = 0; i < n; i++) a[i] = nextInt();
			return a;
		}
		public int[] nextIntArray(int n) {
			int[] a = new int[n];
			for(int i = 0; i < n; i++) a[i] = nextInt();
			return a;
		}
		public char[] nextCharArray() {return nextLine().toCharArray();}
	}
	
}