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;
  if (k == 0) {
    for (int i = 1; i <= p; i++) cout << ".";
    return 0;
  }
  if (k == 1) {
    for (int i = 1; i <= p; i++) {
      long long x;
      cin >> x;
      if (x == n)
        cout << "X";
      else
        cout << ".";
    }
    return 0;
  }
  long long m = 0;
  if (n % 2) {
    m = n--;
    k--;
  }
  if (n % 2 == 0) {
    if (k <= n / 2) {
      long long u = n - 2 * k + 1;
      for (int i = 1; i <= p; i++) {
        long long x;
        cin >> x;
        if ((x > u && x % 2 == 0) || x == m)
          cout << "X";
        else
          cout << ".";
      }
    } else {
      long long u = (n - k) * 2;
      for (int i = 1; i <= p; i++) {
        long long x;
        cin >> x;
        if ((x % 2 == 0 || x > u) || x == m)
          cout << "X";
        else
          cout << ".";
      }
    }
    return 0;
  }
  return 0;
}
