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=""
for i in range(p):
    a=input()
    if n==k:
        s+="X"
    elif k==0:
        s+="."
    elif n%2==1:
        if k>n/2:
            if a%2==0:
                s+="X"
            else:
                a=n-a+1
                if a>2*(k-n/2)-1:
                    s+="."
                else:
                    s+="X"
        else:
            a=n-a+1
            if a==1:
                s+="X"
            elif a%2==1:
                s+="."
            elif a>(k-1)*2:
                s+="."
            else:
                s+="X"
    else:
        a=n-a+1
        if k>=n/2:
            if a%2==1:
                s+="X"
            elif a>(k-n/2)*2:
                s+="."
            else:
                s+="X"
        else:
            if a%2==0:
                s+="."
            elif a>k*2-1:
                s+="."
            else:
                s+="X"
print s
