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 const INF = (1 << 30);
int const MAXN = (int)1e5 + 100;
long long int n, k, p;
int main() {
  cin >> n >> k >> p;
  for (int i = 1; i <= p; i++) {
    long long int x;
    cin >> x;
    if (k == 0)
      cout << ".";
    else if (k == 1) {
      (x == n) ? cout << "X" : cout << ".";
    } else if (k >= n)
      cout << "X";
    else if (n % 2 == 0) {
      if (k <= n / 2) {
        if (x % 2 == 1)
          cout << ".";
        else {
          if (x <= n - 2 * k)
            cout << ".";
          else
            cout << "X";
        }
      } else {
        if (x % 2 == 0) {
          cout << "X";
        } else {
          if (x <= n - 2 * (k - n / 2))
            cout << ".";
          else
            cout << "X";
        }
      }
    } else {
      int nn = n - 1;
      int kk = k - 1;
      if (x == n - 1 || x == n)
        cout << "X";
      else if (kk <= nn / 2) {
        if (x % 2 == 1)
          cout << ".";
        else {
          if (x <= nn - 2 * kk)
            cout << ".";
          else
            cout << "X";
        }
      } else {
        if (x % 2 == 0) {
          cout << "X";
        } else {
          if (x <= nn - 2 * (kk - nn / 2))
            cout << ".";
          else
            cout << "X";
        }
      }
    }
  }
  return 0;
}
