<<  What is the sum?

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8
+
9
=?
8
+
9
=
17
4
+
8
=?
4
+
8
=
12
5
+
9
=?
5
+
9
=
14
3
+
8
=?
3
+
8
=
11
8
+
5
=?
8
+
5
=
13
4
+
7
=?
4
+
7
=
11
5
+
6
=?
5
+
6
=
11
8
+
5
=?
8
+
5
=
13
6
+
5
=?
6
+
5
=
11
8
+
9
=?
8
+
9
=
17
4
+
9
=?
4
+
9
=
13
4
+
7
=?
4
+
7
=
11
5
+
6
=?
5
+
6
=
11
5
+
9
=?
5
+
9
=
14
5
+
9
=?
5
+
9
=
14
7
+
8
=?
7
+
8
=
15
9
+
5
=?
9
+
5
=
14
2
+
9
=?
2
+
9
=
11
6
+
5
=?
6
+
5
=
11
4
+
7
=?
4
+
7
=
11
8
+
4
=?
8
+
4
=
12
6
+
5
=?
6
+
5
=
11
7
+
5
=?
7
+
5
=
12
2
+
9
=?
2
+
9
=
11
5
+
6
=?
5
+
6
=
11
6
+
6
=?
6
+
6
=
12
2
+
9
=?
2
+
9
=
11
5
+
6
=?
5
+
6
=
11
9
+
6
=?
9
+
6
=
15
4
+
7
=?
4
+
7
=
11
8
+
8
=?
8
+
8
=
16
4
+
8
=?
4
+
8
=
12
8
+
3
=?
8
+
3
=
11
8
+
7
=?
8
+
7
=
15
4
+
9
=?
4
+
9
=
13
5
+
8
=?
5
+
8
=
13
6
+
5
=?
6
+
5
=
11
4
+
7
=?
4
+
7
=
11
3
+
8
=?
3
+
8
=
11
9
+
7
=?
9
+
7
=
16
7
+
4
=?
7
+
4
=
11
5
+
8
=?
5
+
8
=
13
3
+
8
=?
3
+
8
=
11
2
+
9
=?
2
+
9
=
11
3
+
8
=?
3
+
8
=
11
5
+
8
=?
5
+
8
=
13
6
+
8
=?
6
+
8
=
14
2
+
9
=?
2
+
9
=
11
6
+
9
=?
6
+
9
=
15
4
+
7
=?
4
+
7
=
11
9
+
5
=?
9
+
5
=
14
9
+
5
=?
9
+
5
=
14
4
+
7
=?
4
+
7
=
11
4
+
7
=?
4
+
7
=
11
2
+
9
=?
2
+
9
=
11
3
+
8
=?
3
+
8
=
11
9
+
2
=?
9
+
2
=
11
6
+
7
=?
6
+
7
=
13
5
+
8
=?
5
+
8
=
13
9
+
2
=?
9
+
2
=
11
5
+
8
=?
5
+
8
=
13
7
+
9
=?
7
+
9
=
16
3
+
9
=?
3
+
9
=
12
7
+
9
=?
7
+
9
=
16
8
+
3
=?
8
+
3
=
11
4
+
8
=?
4
+
8
=
12
6
+
9
=?
6
+
9
=
15
3
+
9
=?
3
+
9
=
12
2
+
9
=?
2
+
9
=
11
8
+
3
=?
8
+
3
=
11
3
+
9
=?
3
+
9
=
12
8
+
4
=?
8
+
4
=
12
8
+
9
=?
8
+
9
=
17
3
+
9
=?
3
+
9
=
12
9
+
5
=?
9
+
5
=
14
5
+
8
=?
5
+
8
=
13
5
+
9
=?
5
+
9
=
14
8
+
6
=?
8
+
6
=
14
6
+
6
=?
6
+
6
=
12
5
+
7
=?
5
+
7
=
12
7
+
7
=?
7
+
7
=
14
4
+
9
=?
4
+
9
=
13
4
+
8
=?
4
+
8
=
12
4
+
9
=?
4
+
9
=
13
7
+
5
=?
7
+
5
=
12
8
+
5
=?
8
+
5
=
13
8
+
6
=?
8
+
6
=
14
6
+
5
=?
6
+
5
=
11
7
+
9
=?
7
+
9
=
16
2
+
9
=?
2
+
9
=
11
5
+
9
=?
5
+
9
=
14
7
+
8
=?
7
+
8
=
15
5
+
7
=?
5
+
7
=
12
4
+
7
=?
4
+
7
=
11
2
+
9
=?
2
+
9
=
11
3
+
9
=?
3
+
9
=
12
8
+
9
=?
8
+
9
=
17
3
+
9
=?
3
+
9
=
12
6
+
8
=?
6
+
8
=
14
6
+
9
=?
6
+
9
=
15
11
12
13
14
15
16
17
18
19
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