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;
long long n, k;
char c;
int p;
void chck(long long ps) {
  if (ps > n)
    printf("%c", c);
  else if (k <= n / 2) {
    if (ps % 2 == 1)
      printf(".");
    else if (ps / 2 > n / 2 - k)
      printf("X");
    else
      printf(".");
  } else {
    if (ps % 2 == 0)
      printf("X");
    else if (ps / 2 + 1 > n - k)
      printf("X");
    else
      printf(".");
  }
}
int main() {
  int i;
  long long tmp;
  cin >> n >> k >> p;
  if (n % 2 == 1) {
    n--;
    if (k > 0) {
      k--;
      c = 'X';
    } else
      c = '.';
  }
  for (i = 1; i <= p; i++) {
    cin >> tmp;
    chck(tmp);
  }
  printf("\n");
  return 0;
}
