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, lim, pos, N, K, q;
  while (scanf("%I64d %I64d", &n, &k) == 2) {
    scanf("%I64d", &q);
    lim = n / 2;
    lim += n % 2;
    while (q--) {
      scanf("%I64d", &pos);
      pos--;
      if (pos == (n - 1)) {
        if (k)
          printf("X");
        else
          printf(".");
        continue;
      }
      if (k > lim) {
        if (pos < (n - k))
          printf(".");
        else
          printf("X");
        continue;
      }
      if (n % 2)
        N = n - 1;
      else
        N = n;
      if (n % 2)
        K = k - 1;
      else
        K = k;
      if (pos % 2 == 0) {
        printf(".");
        continue;
      }
      N /= 2;
      pos = (pos - 1) / 2;
      if (pos < (N - K))
        printf(".");
      else
        printf("X");
    }
    printf("\n");
  }
  return 0;
}
