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 int n, k, p, x;
  scanf("%I64d %I64d %I64d", &n, &k, &p);
  if (k == 1) {
    for (int i = 1; i <= p; i++) {
      scanf("%I64d", &x);
      if (x == n)
        printf("X");
      else
        printf(".");
    }
  } else if (2 * k >= n) {
    for (int i = 1; i <= p; i++) {
      scanf("%I64d", &x);
      if (x > 2 * (n - k))
        printf("X");
      else if (x % 2 == 1)
        printf(".");
      else
        printf("X");
    }
  } else if (n % 2 == 1) {
    for (int i = 1; i <= p; i++) {
      scanf("%I64d", &x);
      if (x <= n - 2 * k + 2)
        printf(".");
      else if (x == n - 2 * k + 3)
        printf("X");
      else if ((x - (n - 2 * k + 3)) % 2 == 1)
        printf("X");
      else
        printf(".");
    }
  } else {
    for (int i = 1; i <= p; i++) {
      scanf("%I64d", &x);
      if (x <= n - 2 * k)
        printf(".");
      else if ((x - (n - 2 * k)) % 2 == 1)
        printf(".");
      else
        printf("X");
    }
  }
  printf("\n");
}
