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;
bool gao(long long n, long long m, int k) {
  long long x, y;
  y = m + m - 1;
  x = n - y;
  if (x < 0) {
    if (k <= 2 * (n - m)) return k % 2 == 1;
    return 0;
  }
  if (x % 2 == 0) {
    if (k == n) return !m;
    return gao(n - 1, m - 1, k);
  }
  if (k <= x) return true;
  return ((k - x) % 2 == 0);
}
int main() {
  int i, j;
  long long n, m;
  int p;
  while (cin >> n >> m >> p) {
    for (i = 0; i < p; i++) {
      cin >> j;
      if (gao(n, m, j))
        cout << '.';
      else
        cout << 'X';
    }
    cout << endl;
  }
  return 0;
}
