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 p;
  scanf("%I64d %I64d %d", &n, &k, &p);
  if (n & 1) {
    n--;
    k--;
  }
  for (int i = 0; i < p; i++) {
    long long pos;
    scanf("%I64d", &pos);
    if (pos % 2 == 0 && (n / 2 - pos / 2) + 1 <= k)
      printf("X");
    else if ((pos == n + 1 && k >= 0) || pos & 1 && n - (pos - 1) / 2 <= k)
      printf("X");
    else
      printf(".");
  }
  printf("\n");
  return (0);
}
