4778
1
=
48
7
−
7
2
=
78
−
74
3
=
7
⋅
8
−
47
4
=
78
−
74
5
=
47
−
7
8
6
=
84
7
+
7
7
=
84
−
77
8
=
(
7
−
7
)
⋅
4
+
8
9
=
7
⋅
8
−
47
10
=
4
+
7
+
7
−
8
11
=
847
7
12
=
84
7
⋅
7
13
=
87
−
74
14
=
784
⋅
7
15
=
7
!
48
7
16
=
8
4
+
7
+
7
17
=
74
+
7
+
8
18
=
74
−
7
⋅
8
19
=
84
7
+
7
20
=
87
−
7
4
21
=
784
−
7
22
=
4
⋅
7
⋅
7
+
8
23
=
4
7
8
+
7
24
=
(
78
−
74
)
!
25
=
74
−
7
8
26
=
78
7
−
4
27
=
4
⋅
7
+
7
−
8
28
=
(
8
−
7
)
⋅
4
⋅
7
29
=
77
−
48
30
=
4
!
+
7
+
7
−
8
31
=
78
−
47
32
=
47
−
7
−
8
33
=
4
⋅
8
+
7
7
34
=
48
−
7
−
7
35
=
784
+
7
36
=
(
7
7
+
8
)
⋅
4
37
=
7
⋅
7
−
4
−
8
38
=
87
−
7
4
39
=
47
−
8
!
7
!
40
=
87
−
47
41
=
48
−
7
⋅
7
42
=
7
8
4
−
7
43
=
4
⋅
7
+
7
+
8
44
=
(
7
+
7
+
8
)
⋅
4
45
=
77
−
4
⋅
8
46
=
47
+
7
−
8
47
=
(
8
−
7
)
⋅
47
48
=
47
−
7
+
8
49
=
7
7
+
48
50
=
78
−
4
⋅
7
51
=
8
4
+
7
⋅
7
52
=
7
⋅
7
⋅
8
−
4
53
=
77
−
(
8
−
4
)
!
54
=
(
47
+
7
)
8
55
=
7
⋅
7
+
48
56
=
87
−
4
!
−
7
57
=
7
4
⋅
7
+
8
58
=
7
⋅
7
⋅
8
+
4
59
=
74
−
7
−
8
60
=
7
⋅
7
!
84
61
=
77
−
4
!
+
8
62
=
47
+
7
+
8
63
=
(
8
4
+
7
)
⋅
7
64
=
78
−
4
⋅
7
65
=
77
−
4
−
8
66
=
74
−
8
!
7
!
67
=
78
−
4
−
7
68
=
7
!
−
8
74
69
=
78
−
4
−
7
70
=
84
−
7
−
7
71
=
77
+
4
−
8
72
=
74
+
7
⋅
8
73
=
74
+
7
−
8
74
=
(
8
−
7
)
⋅
74
75
=
74
−
7
+
8
76
=
87
−
4
−
7
77
=
847
⋅
7
78
=
87
−
4
−
7
79
=
8
4
+
77
80
=
4
!
8
+
77
81
=
77
−
4
+
8
82
=
87
+
4
−
7
83
=
84
−
7
7
84
=
84
7
⋅
7
85
=
7
7
+
84
86
=
7
!
7
8
−
4
87
=
77
+
4
+
8
88
=
(
7
+
7
+
8
)
⋅
4
89
=
74
+
7
+
8
90
=
87
−
4
+
7
91
=
7
⋅
7
+
84
92
=
4
⋅
7
+
78
93
=
77
+
4
!
−
8
94
=
87
4
+
7
95
=
78
+
4
!
−
7
96
=
87
+
4
+
7
97
=
7
⋅
7
+
48
98
=
84
+
7
+
7
99
=
?
100
=
(
7
−
4
+
7
)
8