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(int argc, char* argv[]) {
  long long n, k;
  int p;
  cin >> n >> k >> p;
  long long e = n - k;
  long long first = 0, last = 0, perm = 1;
  if (e > k) {
    first = e - k;
    perm = first + 1;
    if (first % 2 == 1) {
      if (n > 3) {
        first += 2;
        last += 1;
        perm += 2;
      }
    }
  } else {
    last = k - e;
  }
  for (int i = 0; i < p; ++i) {
    long long v;
    cin >> v;
    if (v <= first)
      cout << '.';
    else if (v >= n - last)
      cout << 'X';
    else {
      if (v % 2 == perm % 2)
        cout << '.';
      else
        cout << 'X';
    }
  }
  cout << endl;
  return 0;
}
