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;
const unsigned int INF = 2 * int(1e9) + 5;
const long long INFll = 1ll * INF * INF;
const int MOD = 1000000007;
vector<int> a, u;
void make(vector<int>& p) {
  vector<int> b(p.size());
  vector<int> u_(p.size());
  for (int i = 0; i < p.size(); ++i) b[i] = a[p[i]], u_[i] = u[p[i]];
  for (int i = 0; i < b.size(); ++i) {
    if (u_[i]) {
      int r = i;
      while (r < b.size() && u_[r]) r++;
      r--;
      int lb = -INF;
      int rb = INF;
      if (r < b.size() - 1) rb = b[r + 1];
      if (i) lb = b[i - 1];
      int l = r - i + 1;
      if (1ll * rb - lb - 1 < l) {
        cout << "Incorrect sequence";
        exit(0);
      }
      int L = -l / 2;
      int R = L + l - 1;
      if (R >= rb) R = rb - 1, L = R - l + 1;
      if (L <= lb) L = lb + 1, R = L + l - 1;
      for (int j = i; j <= r; ++j) b[j] = L++;
      i = r;
    }
  }
  for (int i = 1; i < b.size(); ++i)
    if (b[i] <= b[i - 1]) {
      cout << "Incorrect sequence";
      exit(0);
    }
  for (int i = 0; i < b.size(); ++i) a[p[i]] = b[i];
}
int get(const string& s) {
  bool f = 0;
  if (s[0] == '-') f = 1;
  int res = 0;
  for (int i = f; i < s.size(); ++i) res = res * 10 + s[i] - '0';
  if (f) res *= -1;
  return res;
}
int main() {
  cin.tie(0);
  ios_base::sync_with_stdio(0);
  int n, k;
  cin >> n >> k;
  a.resize(n);
  u.resize(n);
  for (int i = 0; i < n; ++i) {
    string s;
    cin >> s;
    if (s == "?")
      u[i] = 1;
    else
      a[i] = get(s);
  }
  for (int i = 0; i < k; ++i) {
    int j = i;
    vector<int> b;
    while (j < n) b.push_back(j), j += k;
    make(b);
  }
  for (int i = 0; i < n; ++i) cout << a[i] << " ";
  return 0;
}
