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 const MOD = 1e9 + 7;
double const EPS = 1e-16;
int const MAXN = 2e5 + 5;
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  long long n, k, m;
  cin >> n >> k >> m;
  int fl = 0;
  if (n % 2 == 1 && k > 0) {
    fl = 1;
    n--, k--;
  }
  for (int i = 0; i < m; i++) {
    long long x;
    cin >> x;
    if (fl == 1 && x - 1 == n)
      cout << 'X';
    else if ((n - x) / 2 + 1 + (n / 2) * (x % 2) <= k)
      cout << 'X';
    else
      cout << '.';
  }
  return 0;
}
