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;
char sol(long long n, long long k, long long first) {
  char ans = '.';
  if (first % 2 == 0) {
    if (first + 2 * (k - 1) >= n) {
      ans = 'X';
    }
  } else {
    int second = k - n / 2;
    if (second > 0) {
      if (first + 2 * second - 1 >= n) {
        ans = 'X';
      }
    }
  }
  return ans;
}
int main() {
  cin >> n >> k >> p;
  while (p--) {
    long long first;
    cin >> first;
    char ans = '.';
    if (k != 0) {
      if (n % 2 == 0) {
        ans = sol(n, k, first);
      } else {
        if (first == n) {
          ans = 'X';
        } else {
          ans = sol(n - 1, k - 1, first);
        }
      }
    }
    cout << ans;
  }
  cout << endl;
}
