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;
long long N, C, Q, x, p, rp, cnt, lm, R;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cin >> N >> C >> Q;
  R = N + 1;
  if ((N + 1) / 2 < C) {
    lm = 2 * C - N + 1;
    R = N - lm + 1;
    C -= lm;
  }
  while (Q--) {
    cin >> p;
    rp = N - p + 1;
    cnt = (rp + 1) / 2;
    if (rp >= R) {
      cout << "X";
    } else if (rp % 2 == 1) {
      if (cnt < C)
        cout << "X";
      else if (cnt > C)
        cout << ".";
      else {
        if (rp > 1 && ((N - rp) % 2) == 0)
          cout << ".";
        else
          cout << "X";
      }
    } else {
      if (cnt + 1 > C)
        cout << ".";
      else if (cnt + 1 < C)
        cout << ".";
      else {
        if (rp > 2 && ((N - rp) % 2) == 0)
          cout << ".";
        else
          cout << "X";
      }
    }
  }
  cout << endl;
}
