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>
#pragma comment(linker, "/STACK:25600000")
using namespace std;
const double pi = acos(-1.0);
const double eps = 1e-9;
const long long INF = 1000000000;
long long n, k, p;
string ans;
int main() {
  cin >> n >> k >> p;
  for (long long i = 0; i < p; ++i) {
    long long t;
    cin >> t;
    if (n % 2) {
      if (t >= n - k + 1)
        ans.push_back('X');
      else
        ans.push_back('.');
    } else {
      long long x = 0;
      if (t % 2 == 0)
        x = (n - t) / 2 + 1;
      else
        x = n / 2 + (n - t) / 2 + 1;
      if (x <= k)
        ans.push_back('X');
      else
        ans.push_back('.');
    }
  }
  cout << ans << endl;
}
