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>
long long n, k, p, q;
int main() {
  scanf("%I64d%I64d%I64d", &n, &k, &p);
  bool flag, spe;
  spe = (n & 1);
  if (spe) {
    k--;
    n--;
  }
  for (int i = 1; i <= p; ++i) {
    scanf("%I64d", &q);
    if (k > n / 2) {
      if (!(q & 1))
        flag = true;
      else
        flag = (n / 2 - (q + 1) / 2 < k - (n / 2));
    } else {
      if (q & 1)
        flag = false;
      else
        flag = ((n - q) / 2) < k;
    }
    if (spe && q == n + 1) flag = 1;
    if (k == -1) flag = 0;
    printf("%c", (flag ? 'X' : '.'));
  }
  puts("");
}
