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 main() {
  long long n, k;
  cin >> n >> k;
  long long e = max(0LL, 2 * k - n);
  if ((e & 1) != (n & 1)) e++;
  long long n1 = n - e, k1 = k - e;
  long long x = k == 0 ? n + 1 : (k == 1 ? n : n1 - 2 * (k1 - 1));
  int p;
  cin >> p;
  for (int i = 0; i < p; i++) {
    long long q;
    cin >> q;
    if (q < x)
      cout << '.';
    else if (q == x)
      cout << 'X';
    else if (q <= n1)
      cout << (((q - x) & 1) ? '.' : 'X');
    else
      cout << 'X';
  }
  return 0;
}
