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, p;
long long x;
int main() {
  cin >> n >> k >> p;
  for (int i = 0; i < p; i++) {
    bool flag;
    cin >> x;
    x--;
    x = (n - 1) - x;
    if (n % 2 == 0) {
      if (x % 2 == 0) {
        flag = (x / 2 + 1) <= k;
      } else {
        flag = (x / 2 + 1) <= (k - n / 2);
      }
    } else {
      if (x == 0)
        flag = k > 0;
      else if (x == 1)
        flag = k > 1;
      else {
        if (x % 2 == 1) {
          flag = (x - 1) / 2 <= (k - 2);
        } else {
          flag = x / 2 <= (k - 1 - n / 2);
        }
      }
    }
    if (flag)
      cout << "X";
    else
      cout << ".";
  }
  cout << endl;
}
