2578
1
=
(
8
−
7
)
25
2
=
25
+
7
8
3
=
7
+
8
25
4
=
25
+
7
8
5
=
82
−
57
6
=
8
−
(
7
−
25
)
7
=
82
−
75
8
=
58
−
2
7
9
=
27
8
−
5
10
=
25
−
7
−
8
11
=
75
−
8
2
12
=
(
25
−
7
)
⋅
8
13
=
85
−
72
14
=
72
−
58
15
=
82
−
7
5
16
=
28
−
5
−
7
17
=
578
2
18
=
78
−
5
!
2
19
=
(
28
7
)
!
−
5
20
=
28
⋅
5
7
21
=
(
8
−
25
)
⋅
7
22
=
58
2
−
7
23
=
(
8
−
2
)
⋅
5
−
7
24
=
578
−
2
25
=
82
−
57
26
=
78
−
52
27
=
25
⋅
7
−
8
28
=
28
7
−
5
29
=
57
−
28
30
=
27
−
5
+
8
31
=
58
−
27
32
=
72
−
5
⋅
8
33
=
25
!
−
87
34
=
578
⋅
2
35
=
87
−
52
36
=
58
2
+
7
37
=
52
−
7
−
8
38
=
2
+
7
!
⋅
5
+
8
39
=
85
−
7
2
40
=
25
+
7
+
8
41
=
57
−
2
⋅
8
42
=
25
!
−
78
43
=
2
7
−
85
44
=
58
−
2
⋅
7
45
=
72
⋅
5
8
46
=
78
−
2
5
47
=
75
−
28
48
=
5
+
7
2
⋅
8
49
=
58
−
2
−
7
50
=
(
5
−
2
)
!
⋅
7
+
8
51
=
52
+
7
−
8
52
=
(
8
−
7
)
⋅
52
53
=
78
−
25
54
=
87
⋅
2
−
5
!
55
=
87
−
2
5
56
=
(
7
−
5
)
⋅
28
57
=
72
−
5
!
8
58
=
85
−
27
59
=
72
−
5
−
8
60
=
5
!
28
7
61
=
8
2
+
57
62
=
87
−
25
63
=
5
⋅
7
+
28
64
=
8
7
−
25
65
=
75
−
2
−
8
66
=
72
−
(
8
−
5
)
!
67
=
5
⋅
8
+
27
68
=
78
−
2
⋅
5
69
=
72
+
5
−
8
70
=
2
7
−
58
71
=
75
−
8
2
72
=
2
⋅
7
+
58
73
=
78
−
25
74
=
7
8
+
25
75
=
72
−
5
+
8
76
=
85
−
2
−
7
77
=
87
−
2
⋅
5
78
=
(
8
−
5
)
!
+
72
79
=
8
2
+
75
80
=
82
+
5
−
7
81
=
7
⋅
8
+
25
82
=
87
−
25
83
=
25
+
78
84
=
82
−
5
+
7
85
=
27
+
58
86
=
(
5
⋅
7
+
8
)
⋅
2
87
=
5
!
8
+
72
88
=
2
⋅
5
+
78
89
=
(
5
+
8
)
⋅
7
−
2
90
=
85
−
2
+
7
91
=
2
⋅
8
+
75
92
=
25
+
87
93
=
(
5
−
2
)
!
+
87
94
=
752
8
95
=
(
27
−
8
)
⋅
5
96
=
(
25
+
7
)
⋅
8
97
=
2
⋅
5
+
87
98
=
(
57
−
8
)
⋅
2
99
=
2
⋅
7
+
85
100
=
(
7
−
5
+
8
)
2