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;
int bitCount(int x) {
  int r = 0;
  while (x) {
    r += x & 1;
    x >>= 1;
  }
  return r;
}
bool get(long long n, long long k, long long a) {
  if (k == 0) return false;
  if (n & 1) {
    if (a == n - 1) return true;
    k--;
    n--;
  }
  if (k <= (n / 2)) {
    if (a % 2 == 0) return false;
    if (a >= n - 1 - 2 * (k - 1))
      return true;
    else
      return false;
  }
  if (a & 1) return true;
  k -= n / 2;
  if (a >= n - 2 - 2 * (k - 1)) return true;
  return false;
}
int main() {
  long long n, k, q, a;
  cin >> n >> k >> q;
  for (int i = 0; i < q; i++) {
    cin >> a;
    if (get(n, k, a - 1))
      printf("X");
    else
      printf(".");
  }
  printf("\n");
  return 0;
}
