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() {
  long long n, k, p;
  cin >> n >> k >> p;
  for (int i = 0; i < p; i++) {
    int pos;
    cin >> pos;
    if (k * 2 - 1 <= n) {
      if (k > 2) {
        if (pos % 2 == n % 2 && pos > n - 2 * k + 1)
          cout << "X";
        else
          cout << ".";
      } else {
        if (n - pos < k)
          cout << "X";
        else
          cout << ".";
      }
    } else {
      long long a = 2 * k - n;
      if (n - pos < a) {
        cout << "X";
      } else {
        if ((n - a) % 2 == pos % 2)
          cout << "X";
        else
          cout << ".";
      }
    }
  }
  return 0;
}
