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(void) {
  long long int n, k, p;
  while (cin >> n >> k >> p) {
    for (int i = 0; i < p; ++i) {
      long long int x;
      cin >> x;
      if (k + k < n && n / 2 <= (n - k + 1) / 2) {
        if (x > n - k)
          cout << "X";
        else
          cout << '.';
      } else if (k + k < n) {
        long long int bound = n - k - k;
        if (x <= bound) {
          cout << '.';
        } else {
          if (bound % 2 != 0 && x == bound + 2)
            cout << '.';
          else if (bound % 2 != 0 && x == bound + 3)
            cout << 'X';
          else if ((x - bound) % 2 == 1)
            cout << '.';
          else
            cout << 'X';
        }
      } else {
        long long int bound = (k - n / 2);
        --x;
        if (x % 2 == 1)
          cout << 'X';
        else {
          if (x + bound * 2 < n)
            cout << '.';
          else
            cout << 'X';
        }
      }
    }
    cout << endl;
  }
  return 0;
}
