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