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;
bool check(long long n, long long m, long long x) {
  if (n & 1) {
    if (m == 1) {
      if (x == n) return false;
      return true;
    }
    if (x == n) return false;
    m--;
  }
  if (x & 1LL) {
    if ((x + 1) / 2 <= n - m) return true;
    return false;
  }
  if (n / 2 + x / 2 <= n - m) return true;
  return false;
}
int main() {
  long long n, m, r, x;
  cin >> n >> m >> r;
  while (r--) {
    cin >> x;
    if (check(n, m, x))
      cout << ".";
    else
      cout << "X";
  }
  cout << endl;
  return 0;
}
