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 Main {
    IOS ios;
    public static void main(String[] args) throws Exception {
        (new Main()).run();
    }

    void run() throws Exception {
        ios = new IOS("","");
        if (reader() == true) {
            runner();
        } else {
            ios.write("Incorrect Sequence\n");
        }
        ios.close();
    }

    int n, k;
    int[] a;
    boolean[] F;
    boolean reader() throws Exception {
        ios.getToken();
        n = ios.getInt();
        k = ios.getInt();
        a = new int[n + n];
        F = new boolean[n + n];
        ios.getToken();
        for (int i = 0; i < n; ++i) {
            String w = ios.getWord();
            if (w.charAt(0) != '?') {
                F[i] = true;
                a[i] = Integer.parseInt(w);
            }
            if (i + k >= n) {
                F[i + k] = true;
                a[i + k] = 1001000000;
            }
        }
        return true;
    }


    boolean runner() throws Exception {
        for (int i = 0; i < k; ++i) {
            int u = 0, v = -1001000000;
            for (int j = i; j - k < n; j += k) {
                //ios.write(j + " " + (j / k + 1) + "\n");
                if (F[j] == true) {
                    if ((j / k + 1) - u > a[j] - v) {
                        ios.write("Incorrect sequence\n");
                        return false;
                    }
                    int len = (j / k + 1) - u - 1;
                    //ios.write(len + "\n");
                    if (len > 0) {
                        if (v <= 0 && a[j] >= 0) {
                            if (a[j] < -v) {
                                int w;
                                if (a[j] > (len - 1) / 2) {
                                    w = (len - 1) / 2 + 1;
                                } else {
                                    w = a[j];
                                }//ios.write(w + " " +  true + "\n");
                                for (int z = j / k; z > u; --z) {
                                    a[(z - 1) * k + i] = --w;
                                }
                            } else {
                                int w;
                                if (-v > (len - 1) / 2) {
                                    w = -(len - 1) / 2 - 1;
                                } else {
                                    w = v;
                                }
                                for (int z = u + 1; z <= j / k; ++z) {
                                    a[(z - 1) * k + i] = ++w;
                                }
                            }
                        } else {
                            if (v <= 0 && a[j] <= 0) {
                                int w = a[j];
                                for (int z = j / k; z > u; --z) {
                                    a[(z - 1) * k + i] = --w;
                                }
                            } else {
                                int w = v;
                                for (int z = u + 1; z <= j / k; ++z) {
                                    a[(z - 1) * k + i] = ++w;
                                }
                            }
                        }
                    }
                    u = j / k + 1;
                    v = a[j];
                }
            }
        }
        for (int i = 0; i < n; ++i) {
            ios.write(a[i] + " ");
        }
        return true;
    }
}

class IOS {
    BufferedReader Reader;
    BufferedWriter Writer;
    public IOS(String inp, String out) throws Exception {
        Reader = new BufferedReader((inp == "")? (new InputStreamReader(System.in)): (new FileReader(inp)));
        Writer = new BufferedWriter((out == "")? (new OutputStreamWriter(System.out)): (new FileWriter(out)));
    }
    public void close() throws Exception {
        Writer.flush();
        if (Reader != null) Reader.close();
        if (Writer != null) Writer.close();
        }

    public String getLine() throws Exception {
        return Reader.readLine();
    }

    StringTokenizer Token;
    public void getToken() throws Exception {
        Token = new StringTokenizer(getLine());
    }

    public int getInt() throws Exception {
        return Integer.parseInt(Token.nextToken());
    }
    public long getLong() throws Exception {
        return Long.parseLong(Token.nextToken());
    }
    public double getDouble() throws Exception {
        return Double.parseDouble(Token.nextToken());
    }
    public String getWord() throws Exception {
        return Token.nextToken() + "";
    }

    public void write(String mess) throws Exception {
        Writer.write(mess);
    }
}