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

from sys import stdin

buf = []
for line in stdin:
    buf.append(line.strip())
buf.reverse()

def getints():
    return [int(e) for e in buf.pop().split()]

n, k, c = tuple(getints())
ret = []
if n <= 2*k: # .x.x.x.x.xxx
    for i in range(c):
        q = int(buf.pop())
        if q%2 == 0 or 2*(n-k) < q:
            ret.append(1)
        else:
            ret.append(0)
elif n%2: # ...x.x.x.xx
    for i in range(c):
        q = int(buf.pop())
        if q == n:
            ret.append(1)
        elif q%2 == 0 and n-2*k+1 < q:
            ret.append(1)
        else:
            ret.append(0)
else: # .....x.x.x.x
    for i in range(c):
        q = int(buf.pop())
        if q%2 == 0 and n-2*k < q:
            ret.append(1)
        else:
            ret.append(0)
print ''.join('.X'[i] for i in ret)
