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() {
  double q, len, n, k;
  int p, i, dig2;
  len = 0.0;
  cin >> n >> k >> p;
  string str;
  int dig = n - (floor(n / 10.0) * 10.0);
  for (i = 0; i < p; i++) {
    cin >> q;
    if (dig % 2 == 0) {
      dig2 = q - (floor(q / 10.0) * 10.0);
      if (k <= n / 2.0) {
        if (dig2 % 2 == 0 && q > (n - 2.0 * k + 1)) {
          cout << "X";
        } else {
          cout << ".";
        }
      } else {
        double val = k - n / 2.0;
        double lim = n - (val * 2.0);
        if (dig2 % 2 == 0) {
          cout << "X";
        } else if (q > lim) {
          cout << "X";
        } else {
          cout << ".";
        }
      }
    } else {
      double lim = n - k;
      if (q > lim) {
        cout << "X";
      } else {
        cout << ".";
      }
    }
  }
  cout << endl;
  return 0;
}
