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;
void output(long long n, long long m, long long a) {
  if (n >= m * 2) {
    long long q = n - m * 2;
    if (a <= q) {
      putchar('.');
    } else {
      a -= q;
      if (a % 2)
        putchar('.');
      else
        putchar('X');
    }
  } else {
    long long q = 2 * (n - m);
    long long a;
    cin >> a;
    if (a <= q) {
      if (a % 2)
        putchar('.');
      else
        putchar('X');
    } else {
      putchar('X');
    }
  }
}
int main() {
  long long n, m;
  long long p;
  while (cin >> n >> m >> p) {
    while (p--) {
      long long a;
      cin >> a;
      if (m == 0) {
        putchar('.');
        continue;
      }
      if (m == n) {
        putchar('X');
        continue;
      }
      if (n % 2 == 0)
        output(n, m, a);
      else {
        if (a == n)
          putchar('X');
        else
          output(n - 1, m - 1, a);
      }
    }
  }
}
