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;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pll = pair<ll, ll>;
using vll = vector<ll>;
using vpll = vector<pll>;
void ga(ll N, int *A) {
  for (ll i(0); i < N; i++) cin >> A[i];
}
int main(void) {
  ios_base::sync_with_stdio(false);
  ll N;
  cin >> N;
  ;
  ll K;
  cin >> K;
  ;
  ll P;
  cin >> P;
  ;
  for (ll i(0); i < P; i++) {
    ll t;
    cin >> t;
    ;
    if (K == 0) {
      cout << '.';
    } else if (K >= (1 + N) / 2)
      cout << (t % 2 ? '.' : 'X');
    else
      cout << (t <= (N - K) ? '.' : 'X');
  }
  return 0;
}
