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;
long long k;
long long p;
int main() {
  cin >> n >> k >> p;
  if (n % 2 == 1) --n, --k;
  if (2LL * k > n) {
    long long tmp = max(0LL, n - k - 1LL);
    long long tmp2 = k - tmp;
    for (int i = 0; i < p; ++i) {
      long long t;
      cin >> t;
      t = n - t;
      if (t == -1)
        cout << "X";
      else if (t < tmp2)
        cout << "X";
      else {
        t -= tmp2;
        if (t % 2 == 0)
          cout << ".";
        else
          cout << "X";
      }
    }
  } else {
    for (int i = 0; i < p; ++i) {
      long long t;
      cin >> t;
      t = n - t;
      if (t == -1)
        cout << "X";
      else if (t >= 2LL * k)
        cout << ".";
      else if (t % 2 == 0)
        cout << "X";
      else
        cout << ".";
    }
  }
  return 0;
}
