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

import java.io.*;
import java.util.*;

public class RusskayaRuletka implements Runnable {
	public static void main(String[] args) {
		new Thread(new RusskayaRuletka()).run();
	}

	BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
	StringTokenizer in;
	PrintWriter out = new PrintWriter(System.out);

	public String nextToken() throws IOException {
		while (in == null || !in.hasMoreTokens()) {
			in = new StringTokenizer(br.readLine());
		}

		return in.nextToken();
	}

	public int nextInt() throws IOException {
		return Integer.parseInt(nextToken());
	}

	public double nextDouble() throws IOException {
		return Double.parseDouble(nextToken());
	}

	public long nextLong() throws IOException {
		return Long.parseLong(nextToken());
	}

	public boolean ans(long n, long k, long x) {
		x = n - x;

		if (k == 0)
			return false;

		if (x == 0)
			return true;

		if (n % 2 != 0) {
			k--;
			n--;
			x--;
		}

		if (k == 0)
			return false;
		
		long know = x / 2;
		if (x % 2 != 0)
			know += n / 2;

		return know < k;
	}

	public void solve() throws IOException {
		long n = nextLong();
		long k = nextLong();
		int p = nextInt();

		for (int i = 0; i < p; i++) {
			long x = nextLong();

			if (ans(n, k, x)) {
				out.print("X");
			} else {
				out.print(".");
			}
		}
	}

	public void run() {
		try {
			solve();
			out.close();
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(1);
		}
	}
}
