4579
1
=
7
−
54
9
2
=
7
−
45
9
3
=
54
+
9
7
4
=
5
−
49
7
5
=
79
−
54
6
=
45
−
9
7
7
=
4
9
−
57
8
=
57
−
49
9
=
54
+
9
7
10
=
47
+
9
5
11
=
54
9
−
7
12
=
59
−
47
13
=
74
+
95
14
=
49
−
5
⋅
7
15
=
74
−
59
16
=
(
5
−
4
)
⋅
7
+
9
17
=
95
+
4
!
7
18
=
7
⋅
9
−
45
19
=
94
−
75
20
=
7
+
9
4
⋅
5
21
=
95
−
74
22
=
475
+
9
23
=
97
−
5
4
24
=
45
−
7
⋅
9
25
=
79
−
54
26
=
75
−
49
27
=
54
9
−
7
28
=
49
⋅
5
−
7
29
=
45
−
7
−
9
30
=
5
⋅
7
+
4
−
9
31
=
954
+
7
32
=
47
−
5
⋅
9
33
=
47
−
5
−
9
34
=
79
−
45
35
=
45
⋅
7
9
36
=
4
⋅
5
+
7
+
9
37
=
94
−
57
38
=
54
−
7
−
9
39
=
75
−
4
⋅
9
40
=
5
⋅
7
−
4
+
9
41
=
45
−
7
+
9
42
=
54
⋅
7
9
43
=
97
−
54
44
=
57
−
4
−
9
45
=
45
9
−
7
46
=
57
−
4
−
9
47
=
45
−
7
+
9
48
=
95
−
47
49
=
45
+
7
−
9
50
=
57
−
49
51
=
47
−
5
+
9
52
=
97
−
45
53
=
59
−
(
7
−
4
)
!
54
=
49
⋅
7
+
5
55
=
45
+
7
+
9
56
=
54
−
7
+
9
57
=
(
4
−
9
)
⋅
57
58
=
54
+
7
−
9
59
=
79
−
4
⋅
5
60
=
74
−
5
−
9
61
=
45
+
7
+
9
62
=
57
−
4
+
9
63
=
(
9
−
4
)
!
−
57
64
=
49
+
57
65
=
(
7
−
4
)
!
+
59
66
=
7
⋅
9
+
45
67
=
95
−
4
⋅
7
68
=
75
−
49
69
=
4
⋅
9
+
57
70
=
54
+
7
+
9
71
=
(
9
−
5
)
!
+
47
72
=
57
+
4
!
−
9
73
=
4
⋅
7
+
59
74
=
75
−
4
+
9
75
=
7
⋅
9
+
54
76
=
57
⋅
4
9
77
=
97
−
4
⋅
5
78
=
74
−
5
+
9
79
=
(
5
−
4
)
⋅
79
80
=
75
−
4
+
9
81
=
4
⋅
9
+
75
82
=
49
+
75
83
=
4
⋅
5
+
7
⋅
9
84
=
5
⋅
7
+
49
85
=
9
7
−
5
+
4
86
=
75
+
4
+
9
87
=
4
⋅
7
+
59
88
=
74
+
5
+
9
89
=
5
⋅
9
+
74
90
=
(
9
−
7
)
⋅
45
91
=
49
+
5
!
⋅
7
92
=
5
⋅
9
+
47
93
=
4
⋅
9
+
57
94
=
(
5
−
9
)
⋅
47
95
=
(
4
⋅
7
−
9
)
⋅
5
96
=
94
−
5
+
7
97
=
(
5
−
4
)
⋅
97
98
=
(
7
−
5
)
⋅
49
99
=
4
⋅
5
+
79
100
=
75
⋅
4
9