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;
  int p;
  cin >> n >> k >> p;
  long long vt1, vt2;
  if (n == k) {
    vt1 = vt2 = 0;
  } else if (k == 0) {
    vt1 = n;
    vt2 = n + 1;
  } else if (k == 1) {
    vt1 = n - 1;
    vt2 = n - 1;
  } else if (n < k * 2) {
    vt1 = 1;
    vt2 = vt1 + (n - k - 1) * 2;
  } else {
    if ((n - (k * 2 - 1)) & 1) {
      vt1 = n - (k * 2 - 1);
      vt2 = n;
    } else {
      vt1 = n - 1 - ((k - 1) * 2 - 1);
      vt2 = n - 1;
    }
  }
  while (p--) {
    long long tmp;
    cin >> tmp;
    if (tmp <= vt1)
      cout << '.';
    else if (tmp <= vt2) {
      if ((tmp - vt1) & 1)
        cout << 'X';
      else
        cout << '.';
    } else
      cout << 'X';
  }
  return 0;
}
