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>
#define int long long
using namespace std;
const int N = 1123456;
const int mod = 1e9 + 7;
const int inf = 1e9 + 7;
int read()
{
    int x;
    scanf("%I64d", &x);
    return x;
}
bool used[N];
vector <int> v[N];
void dfs(int x) {
    used[x] = 1;
    for(int i = 0; i < v[x].size(); i ++) {
        int to = v[x][i];
        if(!used[to]) {
            dfs(to);
        }
    }
}
main()
{
    int n, m, i, j, x, y;
    cin >> n >> m;
    if(m == 0) {
        int p = read();
        for(i = 1; i <= p; i ++) {
            x = read();
                cout << ".";
        }
    }
    else if(m == 1) {
        int p = read();
        for(i = 1; i <= p; i ++) {
            x = read();
            if(x == n)
                cout << "X";
            else
                cout << ".";
        }
    }
    else if(n / 2 > m && (n - m) % 2 == 1) {
        int p = read();
        for(i = 1; i <= p; i ++) {
            x = read();
            int t = n - m * 2 + 1;
            if(x <= t)
                cout << ".";
            else
                if((x - t) % 2 == 1 && x != n)
                    cout << ".";
                else
                    cout << "X";
        }
    }
    else if(n / 2 >= m) {
        int p = read();
        for(i = 1; i <= p; i ++) {
            x = read();
            int t = n - m * 2;
            if(x <= t)
                cout << ".";
            else
                if((x - t) % 2 == 1)
                    cout << ".";
                else
                    cout << "X";
        }
    }
    else {
        int p = read();
        for(i = 1; i <= p; i ++) {
            x = read();
            int t = (n - m) * 2;
            if(t < x)
                cout << "X";
            else
                if(x % 2 == 1)
                    cout << ".";
                else
                    cout << "X";
        }
    }
}

