#include <bits/stdc++.h>
using namespace std;
long long int a, b, c, d, e, f, g, h, i, j, k, l, m, n, o,
    p = 0, q = 0, r, s, t, u, v, w, x, y, z, temp = 0, t1, t2, sum = 0;
double ans = 0;
vector<long long int> v1, v2, v3, v4, v5, v6;
vector<string> vs1, vs2, vs3, vs4;
vector<pair<string, string>> vs11, vs12;
vector<char> vc1, vc2, vc3;
double f1, f2 = 0, f3, f4;
vector<double> v10;
vector<pair<long long int, long long int>> v11, v12, v13, v14;
string s1, s2, s3, s4, s5, s6;
long long int a10[100][3];
long long int a1[100000], a2[100000];
char c1, c2, c3;
map<int, int> m1, m2, m3;
map<string, string> ms1, ms2, ms3;
string as1[1000000], as2[1000000];
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  long long int a12[n][m];
  int a13[26];
  cin >> n >> m >> s1;
  s2 = s1;
  j = m;
  for (i = 0; i < (n - m); i++) {
    if (s1[i] != s1[j] || (s1[i] == '.' && s1[j] == '.')) {
      temp = 1;
      break;
    }
    j++;
  }
  if (temp == 0) {
    cout << "No";
  } else if (temp == 1) {
    for (i = 0; i < m; i++) {
      if (s1[i] == '.') {
        s1[i] = '0';
      }
    }
    j = m;
    for (i = 0; i < n - m; i++) {
      if (s1[i] != s1[j]) {
        p = 1;
        break;
      }
      j++;
    }
    if (p == 0) {
      for (i = 0; i < m; i++) {
        if (s2[i] == '.') {
          s2[i] = '1';
        }
      }
      s1 = s2;
    }
    j = 0;
    for (i = m; i < n; i++) {
      if (s1[i] == '.') {
        if (s1[j] == '1') {
          s1[i] = '0';
        } else {
          s1[i] = '1';
        }
      }
      if (j == m) {
        j = 0;
      } else {
        j++;
      }
    }
    cout << s1;
  }
  return 0;
}
