1278
1
=
(
8
−
7
)
12
2
=
72
18
3
=
81
27
4
=
72
18
5
=
8
−
21
7
6
=
(
81
27
)
!
7
=
17
−
2
−
8
8
=
72
81
9
=
27
−
18
10
=
72
8
+
1
11
=
28
−
17
12
=
(
8
−
7
)
⋅
12
13
=
12
−
7
+
8
14
=
12
−
8
⋅
7
15
=
217
+
8
16
=
18
2
+
7
17
=
(
12
−
8
)
!
−
7
18
=
27
−
81
19
=
27
⋅
1
−
8
20
=
21
+
7
−
8
21
=
8
2
+
17
22
=
(
18
−
7
)
⋅
2
23
=
17
−
2
+
8
24
=
(
72
18
)
!
25
=
17
2
+
8
26
=
182
7
27
=
721
+
8
28
=
(
12
−
8
)
⋅
7
29
=
18
⋅
2
−
7
30
=
27
+
81
31
=
7
2
−
18
32
=
2
⋅
7
+
18
33
=
2
⋅
8
+
17
34
=
27
−
1
+
8
35
=
7
⋅
8
−
21
36
=
18
⋅
72
37
=
81
−
7
2
38
=
78
2
−
1
39
=
78
⋅
1
2
40
=
(
12
−
7
)
⋅
8
41
=
(
8
2
)
!
+
17
42
=
17
⋅
2
+
8
43
=
71
−
28
44
=
7
⋅
8
−
12
45
=
17
+
28
46
=
(
7
−
1
)
⋅
8
−
2
47
=
8
2
−
17
48
=
2
7
⋅
18
49
=
7
12
−
8
50
=
(
17
+
8
)
⋅
2
51
=
(
8
−
1
)
⋅
7
+
2
52
=
7
2
+
81
53
=
7
⋅
8
−
1
−
2
54
=
72
−
18
55
=
71
−
2
⋅
8
56
=
(
2
−
1
)
⋅
7
⋅
8
57
=
78
−
21
58
=
7
2
+
81
59
=
7
⋅
8
+
1
+
2
60
=
(
7
−
1
)
⋅
(
2
+
8
)
61
=
71
−
2
−
8
62
=
(
1
+
7
)
⋅
8
−
2
63
=
72
−
81
64
=
72
⋅
1
−
8
65
=
82
−
17
66
=
78
−
12
67
=
7
2
+
18
68
=
7
⋅
8
+
12
69
=
72
−
81
70
=
(
8
−
1
)
!
72
71
=
72
−
1
8
72
=
1
8
⋅
72
73
=
1
8
+
72
74
=
82
−
1
−
7
75
=
87
−
12
76
=
12
⋅
7
−
8
77
=
7
⋅
8
+
21
78
=
(
2
−
1
)
⋅
78
79
=
72
−
1
+
8
80
=
72
⋅
1
+
8
81
=
72
+
81
82
=
1
7
⋅
82
83
=
1
7
+
82
84
=
87
−
1
−
2
85
=
87
⋅
1
−
2
86
=
81
−
2
+
7
87
=
2
⋅
8
+
71
88
=
82
−
1
+
7
89
=
178
2
90
=
12
+
78
91
=
(
21
−
8
)
⋅
7
92
=
12
⋅
7
+
8
93
=
(
1
+
2
)
!
+
87
94
=
?
95
=
2
⋅
7
+
81
96
=
(
7
−
1
)
⋅
2
⋅
8
97
=
(
1
+
2
)
!
!
8
+
7
98
=
(
8
−
1
)
⋅
2
⋅
7
99
=
12
+
87
100
=
(
81
+
7
)
2