78
+
10
=
13
+
4
=
2
+
51
=
80
+
16
=
17
+
47
=
7
+
1
=
24
+
14
=
21
+
9
=
14
+
7
=
7
+
21
=
2
+
1
=
44
+
23
=
28
+
23
=
22
+
3
=
4
+
12
=
42
+
6
=
12
+
1
=
20
+
58
=
8
+
28
=
12
+
24
=