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;
int main() {
  while (cin >> n >> k) {
    int p;
    cin >> p;
    while (p--) {
      long long wz;
      cin >> wz;
      if (k < n / 2) {
        if (n % 2 == 0) {
          if (wz % 2 == 0 && wz + k * 2 > n)
            cout << "X";
          else
            cout << ".";
        } else {
          if (wz % 2 == 0 && wz + k * 2 + 1 > n)
            cout << "X";
          else
            cout << ".";
        }
      } else {
        if (n % 2 == 0) {
          if (wz % 2 == 0)
            cout << "X";
          else if ((n - wz + 1) / 2 <= (k - n / 2))
            cout << "X";
          else
            cout << ".";
        } else {
          if (wz % 2 == 0 && wz != 2)
            cout << "X";
          else if ((n - wz + 1) / 2 <= (k - n / 2))
            cout << "X";
          else
            cout << ".";
        }
      }
    }
    cout << endl;
  }
  return 0;
}
