7899
1
=
98
−
97
2
=
9
−
(
9
−
8
)
⋅
7
3
=
9
⋅
9
−
78
4
=
78
9
!
−
9
5
=
98
7
−
9
6
=
87
−
9
⋅
9
7
=
79
−
8
⋅
9
8
=
97
−
89
9
=
78
+
9
9
10
=
89
−
79
11
=
79
+
9
8
12
=
99
−
87
13
=
99
−
8
7
14
=
89
+
9
7
15
=
7
+
8
−
9
+
9
16
=
(
9
−
8
)
⋅
7
+
9
17
=
78
9
−
9
18
=
7
+
9
8
⋅
9
19
=
98
−
79
20
=
87
9
−
9
21
=
99
−
78
22
=
78
9
!
+
9
23
=
98
7
+
9
24
=
78
−
9
!
⋅
9
25
=
97
−
8
⋅
9
26
=
89
−
7
⋅
9
27
=
78
+
9
9
28
=
87
−
9
9
29
=
78
+
9
9
30
=
897
+
9
31
=
79
−
8
⋅
9
!
32
=
87
+
9
9
33
=
7
+
8
+
9
+
9
34
=
(
9
−
7
)
⋅
(
8
+
9
)
35
=
98
−
7
⋅
9
36
=
8
9
−
7
⋅
9
37
=
8
⋅
9
+
7
+
9
!
38
=
87
9
+
9
39
=
7
9
+
8
9
40
=
8
⋅
9
+
7
+
9
41
=
(
8
−
9
)
!
−
79
42
=
98
7
⋅
9
43
=
99
−
7
⋅
8
44
=
(
8
−
9
)
⋅
7
+
9
45
=
7
+
8
9
⋅
9
46
=
7
⋅
9
−
8
−
9
47
=
89
−
7
⋅
9
!
48
=
(
7
−
9
9
)
⋅
8
49
=
98
9
−
7
50
=
99
−
7
8
51
=
78
−
9
⋅
9
52
=
78
⋅
9
!
9
53
=
7
⋅
8
−
9
9
54
=
(
7
+
8
−
9
)
⋅
9
55
=
79
−
8
⋅
9
56
=
7
⋅
8
−
9
+
9
57
=
7
⋅
8
+
9
9
58
=
87
⋅
9
!
9
59
=
7
⋅
8
+
9
9
60
=
78
−
9
−
9
61
=
8
9
−
7
−
9
62
=
79
−
8
−
9
63
=
7
!
89
−
9
64
=
7
⋅
9
−
8
+
9
65
=
79
−
8
−
9
!
66
=
78
−
9
−
9
67
=
8
9
−
7
+
9
68
=
79
−
8
−
9
69
=
87
−
9
−
9
70
=
8
⋅
9
+
7
−
9
71
=
(
7
+
9
)
⋅
8
−
9
72
=
78
−
9
+
9
73
=
89
−
7
−
9
74
=
79
−
8
+
9
75
=
78
−
9
9
76
=
89
−
7
−
9
!
77
=
78
−
9
9
78
=
78
−
9
+
9
79
=
9
9
+
78
80
=
79
−
8
+
9
81
=
9
9
+
78
82
=
98
−
7
−
9
83
=
97
−
8
−
9
!
84
=
99
−
7
−
8
85
=
89
−
7
+
9
86
=
87
−
9
9
87
=
87
−
9
+
9
88
=
9
9
+
87
89
=
89
9
−
7
90
=
78
+
9
+
9
91
=
89
−
7
+
9
92
=
97
−
8
+
9
93
=
87
−
9
+
9
94
=
98
−
7
+
9
95
=
97
−
8
+
9
!
96
=
78
+
9
+
9
97
=
(
9
−
8
)
⋅
97
98
=
97
−
8
+
9
99
=
(
8
−
7
)
⋅
99
100
=
98
−
7
+
9