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>
#pragma GCC optimize("Ofast")
#pragma GCC target("sse4")
#pragma GCC optimize("unroll-loops")
using namespace std;
int main() {
  std::ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  long long n, k, low, mid, high, x;
  int p;
  cin >> n >> k >> p;
  if (2 * k >= n)
    x = 0;
  else
    x = (n - 2 * k + 1) / 2;
  low = 1, high = n;
  while (low <= high) {
    mid = (low + high) >> 1;
    if ((n - mid + 2) / 2 > k)
      low = mid + 1;
    else
      high = mid - 1;
  }
  high = n - k + 1;
  while (low <= high) {
    mid = (low + high) >> 1;
    if ((mid - 1) / 2 <= x)
      low = mid + 1;
    else
      high = mid - 1;
  }
  while (p--) {
    cin >> x;
    if (x < high)
      cout << ".";
    else if (x % 2 == high % 2)
      cout << "X";
    else if ((n - x + 2) / 2 <= k - (n - high + 2) / 2)
      cout << "X";
    else
      cout << ".";
  }
  return 0;
}
