1899
1
=
18
−
9
9
2
=
91
−
89
3
=
18
+
9
9
4
=
8
9
9
+
1
5
=
18
9
+
9
6
=
18
9
⋅
9
7
=
98
−
91
8
=
81
−
9
9
9
=
99
−
18
10
=
81
+
9
9
11
=
99
81
12
=
18
−
9
+
9
13
=
1
8
+
9
+
9
14
=
19
−
8
+
9
15
=
18
9
+
9
16
=
8
−
1
9
+
9
17
=
18
−
9
9
18
=
99
−
81
19
=
9
9
+
18
20
=
19
−
8
+
9
21
=
189
9
22
=
198
9
23
=
(
1
+
9
)
⋅
8
−
9
24
=
18
−
9
+
9
25
=
8
−
1
+
9
+
9
26
=
1
⋅
8
+
9
+
9
27
=
18
−
9
⋅
9
28
=
(
9
−
1
)
⋅
98
29
=
8
⋅
9
!
−
19
30
=
891
+
9
31
=
9
!
!
18
−
9
32
=
19
−
9
⋅
8
33
=
198
9
!
34
=
8
⋅
9
+
1
+
9
35
=
1
⋅
9
⋅
9
+
8
36
=
18
+
9
+
9
37
=
(
9
!
−
1
)
⋅
9
−
8
38
=
(
8
−
9
!
)
⋅
19
39
=
1
⋅
8
⋅
9
!
−
9
40
=
(
9
−
9
)
!
18
41
=
(
1
+
9
)
⋅
8
+
9
42
=
(
8
−
1
)
⋅
(
9
−
9
)
43
=
8
⋅
9
+
19
44
=
(
1
+
9
)
⋅
9
+
8
45
=
18
⋅
9
−
9
46
=
(
8
−
9
)
⋅
9
+
1
47
=
(
9
−
9
)
⋅
8
−
1
48
=
(
8
−
1
+
9
)
⋅
9
49
=
19
⋅
9
−
8
50
=
(
8
+
9
)
⋅
9
−
1
51
=
18
⋅
9
−
9
52
=
(
8
+
9
)
⋅
9
+
1
53
=
8
⋅
9
−
19
54
=
18
9
⋅
9
55
=
(
9
−
1
)
⋅
8
−
9
56
=
(
9
−
(
9
−
1
)
)
⋅
8
57
=
18
⋅
9
+
9
58
=
8
⋅
9
!
+
1
+
9
59
=
(
1
+
9
!
)
⋅
8
+
9
60
=
(
8
−
1
)
⋅
9
−
9
61
=
(
9
−
1
)
⋅
8
−
9
62
=
8
⋅
9
−
1
−
9
63
=
189
9
64
=
8
⋅
9
+
1
−
9
65
=
19
⋅
9
+
8
66
=
198
9
67
=
91
−
8
⋅
9
68
=
8
⋅
9
−
1
−
9
69
=
81
−
9
−
9
70
=
89
−
19
71
=
(
1
+
9
)
⋅
8
−
9
72
=
81
⋅
9
−
9
73
=
(
9
−
1
)
⋅
8
+
9
74
=
91
−
8
−
9
75
=
81
−
9
+
9
76
=
8
⋅
9
+
1
+
9
77
=
91
−
8
−
9
!
78
=
81
−
9
9
79
=
98
−
19
80
=
(
19
−
9
)
⋅
8
81
=
99
−
18
82
=
9
9
+
81
83
=
89
⋅
1
−
9
!
84
=
9
9
+
81
85
=
89
−
1
−
9
86
=
89
⋅
1
−
9
87
=
81
−
9
+
9
88
=
89
−
1
9
89
=
1
9
⋅
89
90
=
99
−
81
91
=
819
9
92
=
91
−
8
+
9
93
=
81
+
9
+
9
94
=
98
−
1
−
9
95
=
(
8
−
9
)
⋅
19
96
=
99
−
81
97
=
89
−
1
+
9
98
=
89
⋅
1
+
9
99
=
891
9
100
=
1
8
+
99