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, m, p, g, t, s;
  cin >> n >> k >> m;
  if (k == 0)
    while (m--) putchar('.');
  if (k == n)
    while (m--) putchar('X');
  if (n <= k * 2) {
    k = n - k;
    while (m--) {
      cin >> p;
      putchar((p % 2 == 1 && p < k * 2) ? '.' : 'X');
    }
    return 0;
  }
  t = n - k * 2;
  if (t % 2 == 0) {
    while (m--) {
      cin >> p;
      putchar((p <= t || p % 2 == 1) ? '.' : 'X');
    }
  } else {
    t += 2;
    while (m--) {
      cin >> p;
      putchar((p <= t || (p & 1) && (p != n)) ? '.' : 'X');
    }
  }
  return 0;
}
