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, p, i, d, n1, k1;
  cin >> n >> k >> p;
  n1 = n;
  k1 = k;
  if (n % 2 == 1) {
    n1 = n - 1;
    k1 = k - 1;
  }
  for (i = 0; i < p; i++) {
    cin >> d;
    if (n1 + 1 == d)
      if (k == 0)
        cout << ".";
      else
        cout << "X";
    else if (n1 >= 2 * k)
      if (d % 2 == 0 && (n1 - d) / 2 + 1 <= k1)
        cout << "X";
      else
        cout << ".";
    else if (d % 2 == 1 && (d / 2 + 1) + k1 <= n1)
      cout << ".";
    else
      cout << "X";
  }
  return 0;
}
