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;
#pragma comment(linker, "/STACK:64000000")
int k;
long long x;
long long n, m;
int main() {
  cin >> n >> m >> k;
  for (int i = 0; i < k; ++i) {
    cin >> x;
    if (m == 1) {
      if (x == n)
        cout << "X";
      else
        cout << ".";
      continue;
    }
    if (!m) {
      cout << ".";
      continue;
    }
    if (m == n) {
      cout << "X";
      continue;
    }
    if (m * 2 == n) {
      if (x & 1)
        cout << ".";
      else
        cout << "X";
      continue;
    }
    if (m * 2 < n) {
      long long LEFT = n - (m * 2);
      if (LEFT < 1) ++*(int*)0;
      if (!(LEFT & 1)) {
        if (x > LEFT) {
          x -= LEFT;
          if (x & 1)
            cout << ".";
          else
            cout << "X";
        } else {
          cout << ".";
        }
        continue;
      } else {
        if (x > LEFT) {
          if (x == LEFT + 1 || x == LEFT + 2) {
            cout << ".";
          } else {
            if (x == LEFT + 3 || x == LEFT + 4) {
              cout << "X";
            } else {
              x -= LEFT;
              x -= 4;
              if (x & 1)
                cout << ".";
              else
                cout << "X";
            }
          }
          continue;
        } else {
          cout << ".";
        }
      }
      continue;
    }
    long long LEFT = (n - m) * 2;
    if (LEFT < 1) ++*(int*)0;
    if (x > LEFT) {
      cout << "X";
    } else {
      if (x & 1)
        cout << ".";
      else
        cout << "X";
    }
  }
  return 0;
}
