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 <cstdio>

__int64 n, k, q;
int p;

void all_back() {
    for (int i = 1; i <= p; ++i) {
        scanf("%I64d", &q);
        if (q > n - k)
            printf("X");
        else
            printf(".");
    }
}

void out_mid() {
    for (int i = 1; i <= p; ++i) {
        scanf("%I64d", &q);
        if (q > (n - k) * 2)
            printf("X");
        else {
            if (q & 1)
                printf(".");
            else
                printf("X");
        }
    }
}

int main()
{
    while (scanf("%I64d %I64d %d", &n, &k, &p) != EOF) {
        if (n - k > k)
            all_back();
        else
            out_mid();
        printf("\n");
    }
    return 0;
}

 			  	  	  	 	 				 	  	 	