2478
1
=
(
8
−
7
)
24
2
=
8
−
42
7
3
=
24
−
7
−
8
4
=
7
−
24
8
5
=
4
⋅
8
−
27
6
=
78
−
42
7
=
28
4
⋅
7
8
=
82
−
74
9
=
24
−
7
−
8
10
=
24
8
+
7
11
=
24
−
8
+
7
12
=
84
−
72
13
=
72
8
+
4
14
=
784
2
15
=
27
−
4
−
8
16
=
28
⋅
4
7
17
=
28
−
4
−
7
18
=
72
8
−
4
19
=
47
−
28
20
=
72
+
8
4
21
=
48
−
27
22
=
28
−
(
7
−
4
)
!
23
=
24
+
7
−
8
24
=
72
−
48
25
=
24
−
7
+
8
26
=
784
−
2
27
=
42
−
7
−
8
28
=
782
+
4
29
=
8
4
+
27
30
=
784
+
2
31
=
27
−
4
+
8
32
=
7
⋅
8
−
24
33
=
74
−
8
2
34
=
48
−
2
⋅
7
35
=
82
−
47
36
=
78
−
42
37
=
47
−
2
−
8
38
=
(
27
−
8
)
⋅
4
39
=
24
+
7
+
8
40
=
72
−
4
⋅
8
41
=
42
+
7
−
8
42
=
(
8
−
7
)
⋅
42
43
=
42
−
7
+
8
44
=
2
7
−
84
45
=
87
−
42
46
=
74
−
28
47
=
(
2
+
8
)
⋅
4
+
7
48
=
42
7
⋅
8
49
=
28
4
⋅
7
50
=
74
−
(
8
2
)
!
51
=
8
2
+
47
52
=
78
−
2
−
4
!
53
=
47
−
2
+
8
54
=
78
−
24
55
=
47
2
+
8
56
=
784
⋅
2
57
=
84
−
27
58
=
74
−
2
⋅
8
59
=
472
8
60
=
72
−
4
−
8
61
=
87
−
2
−
4
!
62
=
2
⋅
7
+
48
63
=
87
−
24
64
=
74
−
2
−
8
65
=
82
−
4
!
+
7
66
=
72
+
4
−
8
67
=
8
2
−
4
+
7
68
=
72
+
4
−
8
69
=
72
−
4
!
8
70
=
72
−
8
4
71
=
82
−
4
−
7
72
=
78
−
2
−
4
73
=
82
−
4
−
7
74
=
8
4
+
72
75
=
27
+
48
76
=
(
27
−
8
)
⋅
4
77
=
7
4
+
28
78
=
(
47
−
8
)
⋅
2
79
=
82
+
4
−
7
80
=
7
⋅
8
+
24
81
=
87
−
2
−
4
82
=
(
48
−
7
)
⋅
2
83
=
87
−
2
−
4
84
=
(
28
−
7
)
⋅
4
85
=
82
−
4
+
7
86
=
47
⋅
2
−
8
87
=
82
−
4
+
7
88
=
72
+
4
!
−
8
89
=
48
⋅
2
−
7
90
=
2
⋅
8
+
74
91
=
8
4
+
27
92
=
(
2
⋅
8
+
7
)
⋅
4
93
=
82
+
4
+
7
94
=
2
4
+
78
95
=
2
⋅
4
+
87
96
=
28
⋅
4
!
7
97
=
7
2
+
48
98
=
7
⋅
8
+
42
99
=
82
+
4
!
−
7
100
=
27
⋅
4
−
8