4578
1
=
(
(
5
−
4
)
7
)
8
2
=
7
⋅
8
−
54
3
=
57
−
48
4
=
74
−
58
5
=
57
−
4
⋅
8
6
=
57
−
48
!
7
=
47
−
5
⋅
8
8
=
58
−
4
7
9
=
57
−
48
10
=
5
!
84
7
11
=
58
−
47
12
=
7
!
84
⋅
5
13
=
48
−
5
⋅
7
14
=
7
!
45
8
15
=
58
⋅
4
−
7
16
=
74
−
58
17
=
578
4
18
=
5
8
4
−
7
19
=
57
⋅
8
4
!
20
=
4
⋅
8
−
5
−
7
21
=
7
!
48
⋅
5
22
=
58
4
−
7
23
=
784
−
5
24
=
78
−
54
25
=
57
−
4
⋅
8
26
=
78
5
−
4
27
=
75
−
48
28
=
57
−
8
⋅
4
29
=
5
!
−
84
−
7
30
=
45
−
7
−
8
31
=
4
⋅
7
−
5
+
8
32
=
47
−
5
!
8
33
=
78
−
45
34
=
47
−
5
−
8
35
=
4
⋅
5
+
7
+
8
36
=
48
−
5
−
7
37
=
5
!
−
(
87
−
4
)
38
=
85
−
47
39
=
54
−
7
−
8
40
=
(
5
+
7
)
⋅
4
−
8
41
=
47
−
(
8
−
5
)
!
42
=
87
−
45
43
=
75
−
4
⋅
8
44
=
45
+
7
−
8
45
=
(
8
−
7
)
⋅
45
46
=
45
−
7
+
8
47
=
58
−
4
−
7
48
=
48
7
−
5
49
=
84
−
5
⋅
7
50
=
47
−
5
+
8
51
=
57
+
4
−
8
52
=
58
−
(
7
−
4
)
!
53
=
54
+
7
−
8
54
=
(
8
−
7
)
⋅
54
55
=
54
−
7
+
8
56
=
(
5
−
4
)
⋅
7
⋅
8
57
=
85
−
4
⋅
7
58
=
78
−
4
⋅
5
59
=
8
4
+
57
60
=
48
⋅
75
61
=
57
−
4
+
8
62
=
5
!
8
+
47
63
=
75
−
4
−
8
64
=
(
7
−
4
)
!
+
58
65
=
5
!
−
47
−
8
66
=
5
!
−
(
78
−
4
!
)
67
=
87
−
4
⋅
5
68
=
74
−
(
8
−
5
)
!
69
=
54
+
7
+
8
70
=
4
7
−
58
71
=
74
+
5
−
8
72
=
84
−
5
−
7
73
=
75
−
8
4
74
=
85
−
4
−
7
75
=
58
+
4
!
−
7
76
=
85
−
4
−
7
77
=
74
−
5
+
8
78
=
(
5
−
4
)
⋅
78
79
=
75
−
4
+
8
80
=
(
8
−
5
)
!
+
74
81
=
5
!
−
47
+
8
82
=
84
+
5
−
7
83
=
5
⋅
7
+
48
84
=
84
7
−
5
85
=
75
+
4
+
8
86
=
4
⋅
7
+
58
87
=
5
⋅
8
+
47
88
=
85
−
4
+
7
89
=
4
⋅
8
+
57
90
=
85
−
4
+
7
91
=
75
+
4
!
−
8
92
=
5
!
−
784
93
=
(
4
+
7
)
⋅
8
+
5
94
=
85
+
4
+
7
95
=
(
4
+
7
+
8
)
⋅
5
96
=
(
7
−
5
)
⋅
48
97
=
78
+
4
!
−
5
98
=
4
⋅
5
+
78
99
=
(
8
−
4
)
!
+
75
100
=
7
!
48
−
5