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(int argc, char* argv[]) {
  uint64_t n, k;
  uint32_t p;
  cin >> n;
  cin >> k;
  cin >> p;
  if (!k) {
    for (uint32_t i = 0; i < p; i++) {
      uint64_t x;
      cin >> x;
      cout << ".";
    }
    return 0;
  } else if (k == n) {
    for (uint32_t i = 0; i < p; i++) {
      uint64_t x;
      cin >> x;
      cout << "X";
    }
    return 0;
  }
  bool odd = false;
  if (n & 1) {
    n--;
    k--;
    odd = true;
  }
  for (uint32_t i = 0; i < p; i++) {
    uint64_t x;
    cin >> x;
    if (x == n + odd) {
      if (k + odd) {
        cout << "X";
      } else {
        cout << ".";
      }
      continue;
    }
    uint32_t a = n - 2 * k;
    if (a > n) {
      a = n - 2 * (k - (n >> 1));
      if (x <= a && (x & 1)) {
        cout << ".";
      } else {
        cout << "X";
      }
    } else {
      if (x <= a || (x & 1)) {
        cout << ".";
      } else {
        cout << "X";
      }
    }
  }
  return 0;
}
