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;
const unsigned int INF = 2000000001;
const long long INF0 = 2000000001000000001;
const bool DEBUG_OUTPUT = false;
const int modulo = 1000000007;
const int go[8][2] = {{0, 1}, {0, -1},  {1, 0},  {-1, 0},
                      {1, 1}, {-1, -1}, {1, -1}, {-1, 1}};
int main() {
  long long n, k;
  int p;
  cin >> n >> k >> p;
  long long a = (n >> 1) + (n & 1);
  long long b = 0;
  if (k >= a) {
    b = k - a;
  } else
    a = k;
  if ((n - 2 * a + 1) >= 0 && ((n - 2 * a + 1) & 1) == 0 && k > 0) {
    b = a - 1;
    a = k - b;
  }
  for (int i = 0; i < p; i++) {
    long long q;
    cin >> q;
    q = n - q;
    if (q & 1) {
      cout << ((q >> 1) < b ? 'X' : '.');
    } else
      cout << ((q >> 1) < a ? 'X' : '.');
  }
}
