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;
static const double EPS = 1e-10;
set<int> m;
int main() {
  long long N, K, P;
  cin >> N >> K >> P;
  long long right = K + K - 3;
  if (right < 1) {
    for (int i = 0; i < P; ++i) {
      long long in;
      cin >> in;
      if (in == N)
        cout << "X";
      else
        cout << ".";
    }
    return 0;
  }
  for (int i = 0; i < P; ++i) {
    long long in;
    cin >> in;
    if (in > N - right) {
      if ((in - N - right) & 1) {
        cout << "X";
      } else {
        cout << ".";
      }
    } else {
      int pos;
      if ((N - right) & 1) {
        pos = N - right - 1;
      } else {
        pos = N - right;
      }
      if (in == pos) {
        cout << "X";
      } else {
        cout << ".";
      }
    }
  }
}
