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;
void ASS(bool b) {
  if (!b) {
    ++*(int*)0;
  }
}
#pragma comment(linker, "/STACK:106777216")
bool F(long long n, long long k, long long x) {
  if (k == 0) return 0;
  if (k == n) return 1;
  long long e = max((long long)0, k * 2 - n);
  if ((n - e) & 1) e++;
  ASS(e <= k);
  long long f = k - e;
  if (n - 1 - x < e) return 1;
  if (x < n - 2 * f - e) return 0;
  if ((n - 1 - e - x) & 1)
    return 0;
  else
    return 1;
}
int main() {
  long long n, k;
  cin >> n >> k;
  int p;
  cin >> p;
  for (int i = 0; i < (int)(p); i++) {
    long long x;
    cin >> x;
    if (F(n, k, x - 1))
      cout << "X";
    else
      cout << ".";
  }
  cout << endl;
  return 0;
}
