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.InputStream;
import java.io.PrintStream;
import java.util.Scanner;

public class Roulette implements Runnable {

	private long index(long c, long n) {
		if(n % 2 == 0)
			return c % 2 == 1 ? n - (c - 1) / 2 : n / 2 - c / 2 + 1;
		if(c == n)
			return 1;
		return (c % 2 == 1 ? n - (c + 1) / 2 : n / 2 - c / 2 + 1) + 1;
	}

	public void run() {
		long n = in.nextLong();
		long k = in.nextLong();
		int p = in.nextInt();

		for(int i = 0; i < p; ++i) {
			long x = in.nextLong();
			out.write(index(x, n) <= k ? 'X' : '.');
		}
		out.println();
	}

	private Scanner in;
	private PrintStream out;

	public Roulette(InputStream in, PrintStream out) {
		this.in =  new Scanner(in);
		this.out = out;
	}

	public static void main(String[] args) {
		new Roulette(System.in, System.out).run();
	}
}
