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 n, k;
long long Odd, Even;
void init() {
  if (n % 2 == 0) {
    Even = 2 * (n / 2 - k + 1);
    if (k > n / 2) {
      long long t = k - n / 2;
      Odd = n + 1 - t * 2;
    } else
      Odd = n + 1;
  } else {
    if (k < 1) {
      Odd = Even = n + 1;
    } else {
      long long _k = k - 1;
      long long _n = n - 1;
      Even = 2 * (_n / 2 - _k + 1);
      if (_k > _n / 2) {
        long long t = _k - _n / 2;
        Odd = _n + 1 - t * 2;
      } else
        Odd = _n + 1;
    }
  }
}
bool isFree(long long pos) {
  if (pos % 2 == 0) {
    if (pos >= Even) return true;
    return false;
  } else {
    if (pos >= Odd) {
      return true;
    }
    return false;
  }
}
int main() {
  int p;
  cin >> n >> k >> p;
  init();
  long long pos;
  for (int i = 1; i <= p; ++i) {
    scanf("%I64d", &pos);
    if (isFree(pos))
      printf("X");
    else
      printf(".");
  }
}
