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;
int p;
inline bool check(long long x) {
  if (n % 2) {
    if ((n + 1) / 2 < k)
      return x % 2 == 0 || x >= n - 2 * (k - (n + 1) / 2);
    else
      return (k >= 1 && x == n) || (x % 2 == 0 && x >= n - 2 * k + 3);
  } else {
    if (n / 2 < k)
      return x % 2 == 0 || x >= n - 2 * (k - n / 2) + 1;
    else
      return x % 2 == 0 && x >= n - 2 * (k - 1);
  }
}
int main() {
  cin >> n >> k >> p;
  for (int i = 0; i < p; i++) {
    long long x;
    cin >> x;
    if (check(x))
      cout << "X";
    else
      cout << ".";
  }
  puts("");
  return 0;
}
