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;
long long n, k;
int p;
int main() {
  cin >> n;
  cin >> k;
  cin >> p;
  long long empty = (long long)n - k;
  long long last = max((long long)0, (long long)k - empty);
  long long unused = n - k - k;
  unused++;
  long long firstocc = 0;
  if (last > 0) {
    firstocc = (n - last + 1) - (2 * (k - last));
  } else if (unused > 0 && unused % 2 == 0) {
    if (k != 0) {
      last++;
      k--;
      firstocc = n - (2 * k);
    } else {
      firstocc = (n + 1) - (2 * k);
    }
  } else {
    firstocc = (n + 1) - (2 * k);
  }
  string str = "";
  for (int i = 0; i < p; ++i) {
    long long idx;
    cin >> idx;
    idx--;
    if (n - idx <= last) {
      str += "X";
    } else if (idx >= firstocc && (idx - firstocc) % 2 == 0)
      str += "X";
    else
      str += ".";
  }
  cout << str << endl;
  return 0;
}
