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 

#include <bits/stdc++.h>
using namespace std;
stack<time_t> time_stack;
void startTimer() { time_stack.push(clock()); }
double stopTimer() {
  double time = clock() - time_stack.top();
  time_stack.pop();
  return time / double(CLOCKS_PER_SEC);
}
const int INF = 2e9;
void incorrect() {
  cout << "Incorrect sequence\n";
  exit(0);
}
int main() {
  ios::sync_with_stdio(false);
  int n, k;
  cin >> n >> k;
  vector<int> a(n);
  vector<vector<int> > b(k);
  for (int i = 0; i < k; i++) b[i].push_back(-(INF + 1));
  for (int i = 0; i < n; i++) {
    string s;
    cin >> s;
    int num = 0;
    if (s[0] == '?')
      num = INF;
    else {
      int st = 0;
      if (s[0] == '-') st = 1;
      for (int j = st; j < s.length(); j++)
        if (st == 0)
          num = num * 10 + s[j] - '0';
        else
          num = num * 10 - (s[j] - '0');
    }
    b[i % k].push_back(num);
    a[i] = num;
  }
  bool empty = false;
  for (int i = 0; i < n && !empty; i++)
    if (a[i] == INF) empty = true;
  if (!empty) {
    long long sum = 0;
    for (int i = 0; i < k; i++) sum += a[i];
    for (int i = k; i < n; i++)
      if (sum > sum - a[i - k] + a[i])
        incorrect();
      else
        sum = sum - a[i - k] + a[i];
  }
  for (int i = 0; i < k; i++) {
    b[i].push_back(INF + 1);
    int l = 0, r = 1;
    while (l < b[i].size() - 1) {
      while (b[i][r] == INF) r++;
      if (r - l > 1) {
        int gap_len = r - l - 1;
        if (b[i][l] + gap_len >= b[i][r])
          incorrect();
        else {
          int num;
          if (b[i][l] < 0 && b[i][r] > 0 && -gap_len / 2 > b[i][l])
            num = -gap_len / 2;
          else if (abs(b[i][l]) < abs(b[i][r]))
            num = b[i][l] + 1;
          else
            num = b[i][r] - gap_len;
          for (int j = 0; j < gap_len; j++) {
            int pos = (l + j) * k + i;
            b[i][l + j + 1] = num;
            a[pos] = num;
            num++;
          }
          if (num - 1 >= b[i][r]) exit(0);
        }
      }
      l = r;
      r++;
    }
  }
  for (int i = 0; i < n; i++) cout << a[i] << " ";
  cout << endl;
  return 0;
}
