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;
  int p;
  cin >> n >> k >> p;
  for (int i = 0; i < p; i++) {
    long long pos;
    cin >> pos;
    if (n % 2LL == 0) {
      if (pos % 2LL == 0) {
        if (((n - pos) / 2LL + 1LL) <= k)
          cout << "X";
        else
          cout << ".";
      } else {
        if (((n - pos - 1LL) / 2LL + 1LL + n / 2LL) <= k)
          cout << "X";
        else
          cout << ".";
      }
    } else {
      if (pos == n) {
        if (k >= 1)
          cout << "X";
        else
          cout << ".";
      } else {
        long long n2 = n - 1LL, k2 = k - 1LL;
        if (pos % 2LL == 0) {
          if (((n2 - pos) / 2LL + 1LL) <= k2)
            cout << "X";
          else
            cout << ".";
        } else {
          if (((n2 - pos - 1LL) / 2LL + 1LL + n2 / 2LL) <= k2)
            cout << "X";
          else
            cout << ".";
        }
      }
    }
  }
  cout << endl;
  return 0;
}
