1.
10
-
1
=
(
)
2.
20
-
8
=
(
)
3.
12
-
8
=
(
)
4.
20
-
15
=
(
)
5.
14
-
9
=
(
)
6.
12
-
7
=
(
)
7.
20
-
1
=
(
)
8.
13
-
8
=
(
)
9.
17
-
9
=
(
)
10.
10
-
7
=
(
)
11.
20
-
14
=
(
)
12.
10
-
8
=
(
)
13.
10
-
4
=
(
)
14.
10
-
3
=
(
)
15.
10
-
2
=
(
)
16.
15
-
8
=
(
)
17.
20
-
5
=
(
)
18.
18
-
9
=
(
)
19.
14
-
5
=
(
)
20.
11
-
6
=
(
)
21.
12
-
4
=
(
)
22.
15
-
9
=
(
)
23.
13
-
6
=
(
)
24.
20
-
17
=
(
)
25.
11
-
7
=
(
)
26.
12
-
3
=
(
)
27.
13
-
5
=
(
)
28.
16
-
7
=
(
)
29.
13
-
7
=
(
)
30.
20
-
16
=
(
)
31.
20
-
7
=
(
)
32.
11
-
8
=
(
)
33.
11
-
5
=
(
)
34.
20
-
2
=
(
)
35.
20
-
3
=
(
)
36.
14
-
8
=
(
)
37.
20
-
18
=
(
)
38.
12
-
9
=
(
)
39.
12
-
5
=
(
)
40.
20
-
4
=
(
)
41.
20
-
19
=
(
)
42.
20
-
11
=
(
)
43.
11
-
4
=
(
)
44.
13
-
4
=
(
)
45.
16
-
8
=
(
)
46.
20
-
12
=
(
)
47.
16
-
9
=
(
)
48.
10
-
6
=
(
)
49.
13
-
9
=
(
)
50.
11
-
3
=
(
)
51.
11
-
9
=
(
)
52.
12
-
6
=
(
)
