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.util.Arrays;
import java.util.Scanner;

/**
 * Created by liqiu on 2/24/15.
 */
public class E {
    static long inf = (long) 1e10;
    public static void main(String[] args) {
        Scanner cin = new Scanner(System.in);
        int n = cin.nextInt();
        int k = cin.nextInt();
        long sum = 0;
        long[] lower = new long[n];
        long[] up = new long[n];
        long[] num = new long[n];
        Arrays.fill(lower, -inf);
        Arrays.fill(up, inf);
        Arrays.fill(num, 0);
        long[] a = new long[n];
        for(int i = 0; i < n; ++i){
            String s = cin.next();
            if( s.equals("?" ) ) a[i] = -inf;
            else a[i] = Long.parseLong(s);
        }
        //check consistency
        for(int i = 0; i < k; ++i){
            for(int t = i; t < n; t += k){
                if( a[t] == -inf ){
                    if( t >= k )
                        lower[t] = lower[t - k] + 1;
                }else{
                    if( t >= k && lower[t - k] >= a[t]){
                        System.out.println("Incorrect sequence");
                        return;
                    }
                    lower[t] = a[t];
                }
            }
        }

        for(int i = 0; i < k; ++i){
            int t = n - 1;
            for(; t % k != i; --t);
            for(; t >=0; t-=k){
                if( a[t] == -inf ){
                    if( t + k < n ) up[t] = up[t + k] - 1;
                }else{
                    if( t + k < n && up[t + k ] <= a[t] ){
                        System.out.println("Incorrect sequence");
                        return;
                    }
                    up[t] = a[t];
                }
            }
        }

        for(int i = 0; i < n; ++i)
            if( lower[i] > up[i] ){
                System.out.println("Incorrect sequence");
                return;
            }

        long res = 0;
        for(int i = 0; i < n; ++i){
            if( a[i] != -inf ) System.out.print(a[i] + " ");
            else{
                if( up[i] < 0 ) System.out.print(up[i] + " ");
                else if( lower[i] > 0 ) System.out.print(lower[i] + " ");
                else System.out.print(0 + " ");
            }
        }
        System.out.println();
    }
}
