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;
long long n, m, k, a;
int main() {
  cin >> n >> k >> m;
  if (k + (n - k) / 2 <= (n + 1) / 2) {
    while (m--) {
      cin >> a;
      if (a <= n - k)
        cout << '.';
      else
        cout << 'X';
    }
  } else {
    if (k <= (n + 1) / 2) {
      while (m--) {
        cin >> a;
        if (n % 2 == 0) {
          if (a % 2 == 1 || a <= n - 2 * k)
            cout << '.';
          else
            cout << 'X';
        } else {
          if (a == n || a % 2 == 0 && a > n - 2 * k + 2)
            cout << 'X';
          else
            cout << '.';
        }
      }
    } else {
      long long cut;
      cut = k - (n - k + 1);
      n -= cut;
      k -= cut;
      while (m--) {
        cin >> a;
        if (a > n) {
          cout << 'X';
          continue;
        }
        if (n % 2 == 0) {
          if (a % 2 == 1 || a <= n - 2 * k)
            cout << '.';
          else
            cout << 'X';
        } else {
          if (a == n || a % 2 == 0 && a > n - 2 * k + 2)
            cout << 'X';
          else
            cout << '.';
        }
      }
    }
  }
  return 0;
}
