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() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  long long n, k;
  int p;
  cin >> n >> k >> p;
  int t = 2 * k - n;
  if (t > 0) n -= t;
  if (t > 0) k -= t;
  for (int i = 0; i < p; i++) {
    long long x;
    cin >> x;
    if (x > n) {
      cout << "X";
      continue;
    }
    if (k == 0) {
      cout << ".";
      continue;
    }
    if ((n - 2 * k) % 2 == 0) {
      if (x >= n - 2 * (k - 1) && (n - x) % 2 == 0)
        cout << "X";
      else
        cout << ".";
    } else {
      if (k == 1) {
        if (x == n)
          cout << "X";
        else
          cout << ".";
      } else {
        if (x == n)
          cout << "X";
        else if (x >= n - 1 - 2 * (k - 2) && (n - 1 - x) % 2 == 0)
          cout << "X";
        else
          cout << ".";
      }
    }
  }
  return 0;
}
