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;
#pragma comment(linker, "/stack:16000000")
#pragma warning(disable : 4996)
const int inf = 1 << 25;
const double eps = 1e-9;
long long n, k, p;
string f(long long xi) {
  long long a = n - k, c = k;
  long long d = a - 1;
  d = min(d, n - c);
  d = min(d, c - 1);
  if (a % 2 == d % 2) --d;
  long long b = 0;
  long long e = k - d;
  if (d > 0) {
    a = n - e - 2 * d;
    b = 2 * d;
    c = e;
  }
  if (xi <= a) return ".";
  if (xi > a + b) return "X";
  xi -= a;
  return xi & 1 ? "X" : ".";
}
int main() {
  cin >> n >> k >> p;
  for (int i = (0); i < (p); ++i) {
    long long xi;
    cin >> xi;
    cout << f(xi);
  }
  cout << endl;
  return 0;
}
