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 int N = 1005;
long long n, k;
int p;
int main() {
  cin >> n >> k >> p;
  long long t;
  for (int i = 0; i < p; ++i) {
    cin >> t;
    if (n % 2 == 1) {
      long long tmp = n - 1;
      long long tt = k - 1;
      if (t == n) {
        if (k > 0)
          cout << 'X';
        else
          cout << '.';
      } else if (t % 2 == 0) {
        if ((tmp - t) / 2 + 1 <= tt)
          cout << 'X';
        else
          cout << '.';
      } else {
        if ((tmp - t) / 2 + 1 <= tt - tmp / 2)
          cout << 'X';
        else
          cout << '.';
      }
    } else {
      if (t % 2 == 0) {
        if ((n - t) / 2 + 1 <= k)
          cout << 'X';
        else
          cout << '.';
      } else {
        if ((n - t) / 2 + 1 <= k - n / 2)
          cout << 'X';
        else
          cout << '.';
      }
    }
  }
  cout << endl;
}
