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);
  for (int i = 0; i < p; ++i) {
    long long j;
    scanf("%I64d", &j);
    if (2 * p > n) {
      if (j <= (n - p) * 2) {
        if (j % 2 == 0)
          putchar('X');
        else
          putchar('.');
      } else
        putchar('.');
    } else {
      if (n % 2 == 1) {
        if (j == n)
          putchar('X');
        else if (j <= n - 2 * p + 1)
          putchar('X');
        else {
          if (j % 2 == 0)
            putchar('X');
          else
            putchar('.');
        }
      } else {
        if (j <= n - 2 * p)
          putchar('.');
        else {
          if (j % 2 == 0)
            putchar('X');
          else
            putchar('.');
        }
      }
    }
  }
  putchar('\n');
  return 0;
}
