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;
int main() {
  long long n, k;
  int m;
  scanf("%I64d%I64d%d", &n, &k, &m);
  long long delta = n - k, first = delta + 1 - k;
  if (first < 0) first = 1;
  if (first % 2 == 0 && first < delta) first++;
  long long rest = delta - first;
  while (m--) {
    long long x;
    scanf("%I64d", &x);
    bool ans = true;
    if (x <= first)
      ans = false;
    else {
      x -= first;
      if (x % 2 == 0 && x / 2 <= rest) ans = false;
    }
    if (ans)
      printf("X");
    else
      printf(".");
  }
  return 0;
}
