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;
char judge(long long n, long long k, long long pos) {
  pos = n - pos + 1;
  char ans = 0;
  if ((n & 1) && n / 2 >= k && n > 3 && k > 1) {
    if (pos <= 2)
      ans = 'X';
    else if (pos > (k - 1) * 2)
      ans = '.';
    else if (pos & 1)
      ans = '.';
    else
      ans = 'X';
  } else {
    if ((n + 1) / 2 >= k) {
      if (pos >= 2 * k)
        ans = '.';
      else if (pos & 1)
        ans = 'X';
      else
        ans = '.';
    } else {
      int rem = k - (n + 1) / 2;
      if (pos <= rem * 2)
        ans = 'X';
      else if (pos & 1)
        ans = 'X';
      else
        ans = '.';
    }
  }
  return ans;
}
int main() {
  long long n, k;
  int p;
  while (cin >> n >> k >> p) {
    string s;
    for (int i = 0, _n(p); i < _n; ++i) {
      long long pos;
      cin >> pos;
      s += (judge(n, k, pos));
    }
    cout << s << endl;
  }
  return 0;
}
