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:256000000")
using namespace std;
int main() {
  ios::sync_with_stdio(0);
  long long n, k, m, a;
  cin >> n >> k >> m;
  for (int i = 0; i < m; i++) {
    cin >> a;
    if (k >= (n + 1) / 2) {
      long long t = n - k;
      if (a > 2 * t) {
        cout << 'X';
        continue;
      }
      if (a % 2 != 0) {
        cout << '.';
      } else {
        cout << 'X';
      }
      continue;
    }
    long long ans1 = (n - k + 1) / 2, ans2 = (n - 2 * k) / 2 + k;
    if (ans1 >= ans2) {
      if (a <= n - k) {
        cout << '.';
      } else {
        cout << 'X';
      }
    } else {
      if (a <= n - 2 * k) {
        cout << '.';
      } else {
        if ((n - a) % 2 == 0) {
          cout << 'X';
        } else {
          cout << '.';
        }
      }
    }
  }
  return 0;
}
