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

def solve1(n, m):
    x = int(raw_input())
    if x % 2 == 0 and x > n - 2 * m:
        return 'X'
    else:
        return '.'

def solve2(n, m):
    x = int(raw_input())
    k = m - n / 2
    if x % 2 != 0 and x < n - k * 2:
        return '.'
    else:
        return 'X'
    
def solve3(n, m):
    x = int(raw_input())
    if x <= n - m:
        return '.'
    else:
        return 'X'
    
n, m, p = (int(s) for s in raw_input().split())
r = ''
if n % 2 == 0:
    if m > n / 2:
        for _ in xrange(p):
            r += solve2(n, m)
    else:
        for _ in xrange(p):
            r += solve1(n, m)
else:
    for _ in xrange(p):
        r += solve3(n, m)
        
print r