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;
const long double epsilon = 1e-9;
int main() {
  long long n, k, p;
  cin >> n >> k >> p;
  long long free = n - 2LL * k;
  if (free < 0) free = 0;
  if (free % 2 == 1) {
    if (n - free - 1 > (k - 1) / 2)
      free++;
    else
      free--;
  }
  long long x;
  for (int i = 0; i < p; i++) {
    cin >> x;
    if (x <= free) {
      cout << ".";
      continue;
    }
    x -= free;
    if (x % 2 == 0 || (free + (x + 1) / 2 + k > n))
      cout << "X";
    else
      cout << ".";
  }
  cout << endl;
  return 0;
}
