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() {
  ios::sync_with_stdio(0);
  long long n, k, p, x, l, r;
  cin >> n >> k >> p;
  if (n < 2 * k) {
    l = 0;
    r = (n - k) * 2;
  } else if (n == 2 * k) {
    l = 0;
    r = n;
  } else {
    l = n - 2 * k;
    r = n;
  }
  if (l % 2 == 1) {
    l++;
    r--;
  }
  while (p--) {
    cin >> x;
    x--;
    if (x < l)
      cout << '.';
    else if (x < r) {
      x -= l;
      if (x % 2 == 0)
        cout << '.';
      else
        cout << 'X';
    } else
      cout << 'X';
  }
  return 0;
}
