7 7 7
1
2
3
4
5
6
7
 4 2 8
1
3
4
2
3
4
1
2
 9 4 9
1
2
3
4
5
6
7
8
9
 7 5 7
1
2
3
4
5
6
7
 15 10 15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
 4 0 4
1
2
3
4
 12 2 12
1
2
3
4
5
6
7
8
9
10
11
12
 10 2 10
1
2
3
4
5
6
7
8
9
10
 7 4 7
1
2
3
4
5
6
7
 7 3 7
1
2
3
4
5
6
7

XXXXXXX
 ..XX.X.X
 ...X.X.XX
 .X.XXXX
 .X.X.X.X.XXXXXX
 ....
 .........X.X
 .......X.X
 .X.X.XX
 ...X.XX

#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, k, p;
  while (cin >> n >> k >> p) {
    string s = "";
    int n1 = n - k, n2 = k;
    if (n1 <= n2) {
      for (int i = 0; i < n1; i++) s += ".X";
      s += string(n2 - n1, 'X');
    } else {
      for (int i = 0; i < n2; i++) s += ".X";
      if (n % 2 == 1 && n2 > 1) swap(s[1], s[2]);
      s = string(n1 - n2, '.') + s;
    }
    for (int i = 0; i < p; i++) {
      int k;
      cin >> k;
      cout << s[k - 1];
    }
    cout << endl;
  }
  return 0;
}
