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() {
  unsigned long long n, k, p, t, a, b;
  cin >> n >> k >> p;
  if (k == 0) {
    for (int i = 0; i < p; ++i) {
      cout << '.';
    }
    return 0;
  }
  if (k == 1) {
    for (int i = 0; i < p; ++i) {
      cin >> t;
      cout << (t == n ? 'X' : '.');
    }
    return 0;
  }
  if (k * 2 >= n) {
    a = (n - k) * 2;
    for (int i = 0; i < p; ++i) {
      cin >> t;
      if (t <= a)
        cout << (t & 1 ? '.' : 'X');
      else
        cout << 'X';
    }
  } else {
    if ((n - (k * 2 - 1)) & 1) {
      a = n - (k * 2 - 1);
      for (int i = 0; i < p; ++i) {
        cin >> t;
        if (t <= a)
          cout << '.';
        else
          cout << (t & 1 ? '.' : 'X');
      }
    } else {
      a = n - (k * 2 - 1) + 1;
      for (int i = 0; i < p; ++i) {
        cin >> t;
        if (t == n) {
          cout << 'X';
          continue;
        }
        if (t <= a)
          cout << '.';
        else
          cout << (t & 1 ? '.' : 'X');
      }
    }
  }
  return 0;
}
