7889
1
=
79
8
−
8
2
=
89
−
87
3
=
88
−
79
4
=
98
⋅
8
7
5
=
88
−
7
⋅
9
6
=
78
−
8
⋅
9
7
=
8
−
(
8
−
7
)
9
8
=
9
−
(
8
−
7
)
8
9
=
88
−
79
10
=
(
8
−
7
)
8
+
9
11
=
89
−
78
12
=
87
+
9
8
13
=
88
+
9
7
14
=
7
+
8
+
8
−
9
15
=
79
−
8
⋅
8
16
=
89
−
8
+
7
17
=
(
8
−
7
)
⋅
8
+
9
18
=
78
9
−
8
19
=
8
+
8
⋅
7
−
9
20
=
98
−
78
21
=
87
9
−
8
22
=
98
7
+
8
23
=
8
⋅
9
+
7
−
8
24
=
(
9
−
7
)
⋅
8
+
8
25
=
88
−
7
⋅
9
26
=
7
+
8
+
8
+
9
27
=
88
−
7
9
28
=
97
⋅
8
+
8
29
=
8
+
8
⋅
9
−
7
30
=
78
−
8
⋅
9
!
31
=
8
⋅
8
⋅
9
+
7
32
=
7
+
8
+
8
+
9
33
=
89
−
7
⋅
8
34
=
78
9
+
8
35
=
98
⋅
8
+
7
36
=
(
7
−
8
8
)
⋅
9
!
37
=
87
9
+
8
38
=
7
8
−
8
−
9
39
=
7
⋅
8
−
8
−
9
40
=
89
−
7
8
41
=
(
8
+
8
)
⋅
9
−
7
42
=
98
−
7
⋅
8
43
=
(
8
−
9
)
⋅
7
+
8
44
=
88
9
−
7
45
=
7
⋅
8
−
8
−
9
46
=
88
−
7
⋅
9
!
47
=
7
⋅
9
−
8
−
8
48
=
8
⋅
8
−
7
−
9
49
=
(
8
+
8
−
9
)
⋅
7
50
=
7
8
−
8
+
9
51
=
7
⋅
8
−
8
+
9
52
=
7
8
+
8
+
9
53
=
(
7
+
8
)
⋅
9
+
8
54
=
78
−
8
⋅
9
55
=
7
⋅
8
+
8
−
9
56
=
7
!
98
−
8
57
=
7
⋅
8
−
8
+
9
58
=
7
8
+
8
+
9
59
=
7
⋅
9
−
8
+
8
60
=
8
⋅
8
−
7
+
9
61
=
78
−
8
−
9
62
=
8
⋅
8
+
7
−
9
63
=
79
−
8
−
8
64
=
8
7
+
9
8
65
=
8
⋅
8
⋅
7
+
9
66
=
8
⋅
8
−
7
+
9
67
=
78
−
8
−
9
68
=
788
−
9
!
!
69
=
78
−
9
!
8
!
70
=
87
−
8
−
9
71
=
79
−
8
⋅
8
72
=
88
−
7
−
9
73
=
78
−
8
+
9
74
=
89
−
7
−
8
75
=
79
−
8
+
8
76
=
87
−
8
−
9
77
=
78
+
8
−
9
78
=
(
9
−
8
)
⋅
78
79
=
78
−
8
+
9
80
=
8
8
+
79
81
=
97
−
8
−
8
82
=
87
−
8
+
9
83
=
98
−
7
−
8
84
=
88
−
7
+
9
85
=
87
−
8
+
9
!
86
=
87
+
8
−
9
87
=
(
9
−
8
)
⋅
87
88
=
87
−
8
+
9
89
=
(
8
−
7
)
⋅
89
90
=
88
−
7
+
9
91
=
(
8
+
8
+
9
)
⋅
7
92
=
87
+
8
−
9
93
=
97
−
8
+
8
94
=
?
95
=
78
+
8
+
9
96
=
97
−
8
8
97
=
97
−
8
+
8
98
=
8
8
+
97
99
=
98
−
7
+
8
100
=
(
8
−
7
+
9
)
8