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;
const double TOLL = 1e-9;
char answer(long long n, long long k, long long p) {
  long long mid = n / 2;
  if (k <= mid) {
    long long space = n - (k + k - 1);
    if (p <= space) return '.';
    if (p % 2)
      return '.';
    else
      return 'X';
  } else {
    long long last = n - (2ll * (k - mid) + 1) + 1;
    if (p >= last) return 'X';
    if (p % 2)
      return '.';
    else
      return 'X';
  }
  return '.';
}
int main() {
  long long n, k, p;
  while (cin >> n >> k >> p) {
    for (int i = 0; i < p; i++) {
      long long x;
      cin >> x;
      if (n % 2 == 0) {
        cout << answer(n, k, x);
      } else {
        if (x == n && k)
          cout << "X";
        else
          cout << answer(n - 1, max(k - 1, 0ll), x);
      }
    }
    cout << endl;
  }
}
