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

n, k, p = map(int, raw_input().split())
s = ""
if n % 2 == 0 or k < n / 2 + 1:
    for i in xrange(p):
        x = int(raw_input())
        if (n - x) % 2 == 0 and x >= n - 2 * (k - 1):
            s += "X"
        elif k > (n + 1) / 2 and x >= (n + 1) - (k - (n + 1) / 2) * 2:
            s += "X"
        else:
            s += "."
else:
    for i in xrange(p):
        x = int(raw_input())
        if x == n or x % 2 == 0:
            s += "X"
        elif x >= n - (k - (n + 1) / 2) * 2:
            s += "X"
        else:
            s += "."
print s