1589
1
=
(
9
−
8
)
15
2
=
9
−
(
15
−
8
)
3
=
15
+
9
8
4
=
18
−
5
−
9
5
=
5
18
9
6
=
91
−
85
7
=
18
9
+
5
8
=
18
−
9
+
5
9
=
8
⋅
9
−
15
10
=
18
⋅
5
9
11
=
18
9
+
5
12
=
91
+
5
8
13
=
15
9
+
8
14
=
95
−
81
15
=
(
9
−
8
)
⋅
15
16
=
15
−
8
+
9
17
=
1
5
⋅
8
+
9
18
=
81
+
9
5
19
=
58
−
1
9
20
=
15
+
8
−
9
21
=
5
⋅
8
−
19
22
=
81
−
59
23
=
81
+
5
+
9
24
=
(
18
−
5
−
9
)
!
25
=
5
18
9
26
=
15
+
8
+
9
27
=
5
⋅
9
−
18
28
=
85
−
1
9
29
=
58
9
−
1
30
=
18
⋅
5
9
31
=
5
!
−
89
⋅
1
32
=
15
+
8
+
9
33
=
91
−
58
34
=
51
−
8
−
9
35
=
(
8
−
1
9
)
⋅
5
36
=
81
−
5
⋅
9
37
=
15
⋅
9
−
8
38
=
89
−
51
39
=
58
−
19
40
=
15
⋅
8
9
41
=
59
−
18
42
=
18
⋅
9
−
5
!
43
=
1
⋅
5
⋅
8
+
9
44
=
5
9
−
81
45
=
(
18
−
9
)
⋅
5
46
=
51
−
8
+
9
47
=
98
−
51
48
=
(
15
−
9
)
⋅
8
49
=
58
⋅
1
−
9
50
=
59
−
81
51
=
(
9
−
8
)
⋅
51
52
=
51
−
8
+
9
53
=
15
⋅
9
+
8
54
=
58
−
1
−
9
55
=
(
19
−
8
)
⋅
5
56
=
59
−
81
57
=
8
⋅
9
−
15
58
=
1
9
⋅
58
59
=
5
⋅
8
+
19
60
=
1
8
+
59
61
=
58
⋅
1
+
9
62
=
59
+
81
63
=
(
15
−
8
)
⋅
9
64
=
8
1
+
9
5
65
=
89
−
(
5
−
1
)
!
66
=
85
−
19
67
=
58
⋅
1
+
9
68
=
59
+
81
69
=
189
−
5
!
70
=
81
−
5
−
9
!
71
=
8
⋅
9
−
1
5
72
=
(
9
−
5
)
⋅
18
73
=
81
−
5
−
9
74
=
89
−
15
75
=
85
−
1
−
9
76
=
85
⋅
1
−
9
77
=
18
+
59
78
=
198
−
5
!
79
=
81
−
5
+
9
80
=
(
1
5
+
9
)
⋅
8
81
=
18
⋅
5
−
9
82
=
85
⋅
1
−
9
83
=
98
−
15
84
=
85
−
1
9
85
=
81
−
5
+
9
86
=
95
−
81
87
=
8
⋅
9
+
15
88
=
89
−
1
5
89
=
1
5
⋅
89
90
=
1
5
+
89
91
=
5
−
1
+
89
92
=
98
−
1
−
5
93
=
85
−
1
+
9
94
=
85
⋅
1
+
9
95
=
81
+
5
+
9
96
=
1
8
+
95
97
=
98
−
1
5
98
=
1
5
⋅
98
99
=
18
⋅
5
+
9
100
=
5
−
1
+
98