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() {
  long long n, k, q;
  cin >> n >> k >> q;
  long long a = (n - k) / 2;
  long long b = max(0LL, (n - (k * 2 - 1)) / 2);
  if (a <= b) {
    for (int i = 0; i < q; i++) {
      long long query;
      cin >> query;
      if (query + k > n)
        cout << "X";
      else
        cout << ".";
    }
  } else {
    for (int i = 0; i < q; i++) {
      long long query;
      cin >> query;
      if ((query % 2 == n % 2 && (n - query) / 2 < k) ||
          (query % 2 != n % 2 && (n - query - 1) / 2 < k - (n + 1) / 2))
        cout << "X";
      else
        cout << ".";
    }
  }
  cout << endl;
  return 0;
}
