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;
const int MAXN = 1 * 1000 + 10, INF = 1e9 + 7;
int main() {
  ios::sync_with_stdio(false);
  long long n, k;
  int p;
  cin >> n >> k >> p;
  for (int i = 0; i < p; i++) {
    int x;
    cin >> x;
    if (n % 2 == 0) {
      x = n - x;
      if (x % 2 == 0)
        x /= 2;
      else
        x /= 2, x += n / 2;
      if (x < k)
        cout << 'X';
      else
        cout << '.';
    } else {
      x = n - x;
      if (x < k)
        cout << 'X';
      else
        cout << '.';
    }
  }
  return 0;
}
