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, x, t, a1, f, mod, a2;
  cin >> n >> x >> t;
  if (x < n / 2 + (n % 2 != 0))
    f = 1;
  else
    f = 2;
  if (f == 1) {
    long long re = n - x * 2;
    re /= 2;
    long long ans1 = re + x;
    long long ans2 = (n - x) / 2 + ((n - x) % 2 != 0);
    if (ans1 > ans2)
      mod = 1, a1 = n - x * 2;
    else
      mod = 2, a1 = n - x;
  }
  if (f == 2) {
    a1 = x - (n / 2);
    a1 = n - a1 * 2;
  }
  while (t--) {
    long long pos;
    cin >> pos;
    if (f == 1) {
      if (mod == 1) {
        if ((n - x * 2) & 1) {
          long long xx = x - 2;
          if (pos > n - 3) {
            if (pos == n)
              cout << "X";
            else if (pos == n - 1)
              cout << "X";
            else
              cout << ".";
            continue;
          }
          long long now = n - 3;
          if (pos > now - xx * 2) {
            if (pos & 1)
              cout << ".";
            else
              cout << "X";
            continue;
          } else
            cout << ".";
        } else if (pos <= a1)
          cout << ".";
        else {
          if (n & 1) {
            if (pos & 1)
              cout << "X";
            else
              cout << ".";
          } else {
            if (pos & 1)
              cout << ".";
            else
              cout << "X";
          }
        }
      } else {
        if (pos <= a1)
          cout << ".";
        else
          cout << "X";
      }
    } else {
      if ((n - x * 2) & 1) {
        long long xx = x - 2;
        if (pos >= n - 3) {
          if (pos == n)
            cout << "X";
          else if (pos == n - 1)
            cout << "X";
          else
            cout << ".";
          continue;
        }
        long long now = n - 3;
        if (pos > now - xx * 2) {
          if (pos & 1)
            cout << ".";
          else
            cout << "X";
          continue;
        } else
          cout << ".";
      } else if (n & 1) {
        long long now = n - x;
        if (pos <= now * 2) {
          if (pos & 1)
            cout << ".";
          else
            cout << "X";
        } else
          cout << "X";
      } else {
        long long now = n - x;
        if (pos <= now * 2) {
          if (pos & 1)
            cout << ".";
          else
            cout << "X";
        } else
          cout << "X";
      }
    }
  }
}
