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, p;
  cin >> n >> k >> p;
  int f1 = n, f2 = k;
  for (long long i = 0; i < p; i++) {
    long long x;
    cin >> x;
    n = f1, k = f2;
    if (n % 2 == 1) {
      if (k >= 1 && x == n)
        cout << "X";
      else if (x == n)
        cout << ".";
      else {
        k--;
        n--;
        if (x % 2 == 0) {
          long long hi = n - x;
          hi /= 2;
          hi++;
          if (hi <= k)
            cout << "X";
          else
            cout << ".";
        } else {
          long long hi = n / 2;
          long long u = n - x + 1;
          u /= 2;
          hi += u;
          if (hi <= k)
            cout << "X";
          else
            cout << ".";
        }
      }
    } else {
      if (x % 2 == 0) {
        long long hi = n - x;
        hi /= 2;
        hi++;
        if (hi <= k)
          cout << "X";
        else
          cout << ".";
      } else {
        long long hi = n / 2;
        long long u = n - x + 1;
        u /= 2;
        hi += u;
        if (hi <= k)
          cout << "X";
        else
          cout << ".";
      }
    }
  }
  return 0;
}
