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;
long long int getOnes(long long int n, long long int k) {
  long long int o = 2 * k - n;
  if (o >= 0)
    return o;
  else
    return n % 2;
}
long long int getLongest(long long int n, long long int k) {
  if (!k)
    return 0;
  else
    return (n - (k - 1) * 2);
}
int main() {
  ios_base::sync_with_stdio(0);
  long long int n, k;
  int p;
  cin >> n >> k >> p;
  if (k == 0) {
    for (int i = (1); i <= (p); ++i) cout << '.';
    return 0;
  } else if (k == 1) {
    for (int i = (1); i <= (p); ++i) {
      long long int x;
      cin >> x;
      if (x < n)
        cout << '.';
      else
        cout << 'X';
    }
    return 0;
  }
  long long int ones = 0, longest = n;
  ones = getOnes(n, k);
  n -= ones;
  k -= ones;
  longest = getLongest(n, k);
  while (p--) {
    long long int x;
    cin >> x;
    bool bullet;
    if (x < longest)
      bullet = false;
    else if (x == longest)
      bullet = true;
    else if (x > longest && x <= n)
      bullet = (x - longest - 1) % 2;
    else
      bullet = true;
    if (bullet)
      cout << 'X';
    else
      cout << '.';
  }
  return 0;
}
