4447
1
=
47
4
−
4
2
=
44
4
−
7
3
=
47
−
44
4
=
44
4
−
7
5
=
7
4
−
44
6
=
(
47
−
44
)
!
7
=
(
4
−
4
)
⋅
4
+
7
8
=
4
4
−
4
+
7
9
=
4
+
4
4
+
7
10
=
4
−
4
4
+
7
11
=
4
−
4
+
4
+
7
12
=
4
4
+
4
+
7
13
=
44
−
4
!
−
7
14
=
4
+
4
4
⋅
7
15
=
44
4
−
7
16
=
44
−
4
⋅
7
17
=
(
4
−
4
+
4
)
!
−
7
18
=
44
4
+
7
19
=
47
−
4
!
−
4
20
=
4
⋅
7
−
4
−
4
21
=
(
4
−
4
4
)
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7
22
=
(
4
+
7
)
⋅
44
23
=
47
−
4
⋅
4
!
24
=
(
44
4
−
7
)
!
25
=
(
4
+
4
)
⋅
4
−
7
26
=
74
−
4
!
−
4
!
27
=
44
−
4
!
+
7
28
=
(
4
−
4
+
4
)
⋅
7
29
=
44
4
+
7
30
=
74
−
44
31
=
744
4
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32
=
(
4
4
+
7
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4
33
=
44
−
4
−
7
34
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4
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7
+
4
+
4
35
=
44
−
4
−
7
36
=
4
4
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4
7
37
=
74
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4
4
38
=
44
−
(
7
−
4
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!
39
=
47
−
4
−
4
40
=
(
4
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7
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⋅
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4
41
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44
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7
42
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(
4
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7
43
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47
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4
44
=
4
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4
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7
45
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47
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4
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4
46
=
47
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4
4
47
=
44
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4
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7
48
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4
4
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47
49
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44
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4
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7
50
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(
7
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4
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!
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44
51
=
4
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47
52
=
(
4
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7
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4
53
=
44
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4
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7
54
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74
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4
55
=
44
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4
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7
56
=
(
4
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4
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7
57
=
4
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7
58
=
74
−
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4
59
=
4
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4
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47
60
=
(
4
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4
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7
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4
61
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44
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4
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−
7
62
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74
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4
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4
63
=
4
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47
64
=
4
7
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4
65
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4
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66
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74
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4
−
4
67
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47
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4
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4
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68
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74
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−
4
69
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47
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4
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4
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70
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74
−
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4
71
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4
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⋅
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7
72
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4
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44
73
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74
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4
74
=
74
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4
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4
75
=
4
4
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74
76
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74
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4
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4
77
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44
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7
78
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4
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4
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74
79
=
(
7
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4
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4
−
4
80
=
74
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4
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4
81
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44
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7
82
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74
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4
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4
83
=
(
7
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4
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4
+
4
84
=
4
7
−
44
85
=
(
7
−
4
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4
+
4
86
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(
47
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4
87
=
(
4
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4
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7
88
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4
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(
4
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7
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89
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4
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4
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4
!
−
7
90
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4
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4
+
74
91
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44
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47
92
=
(
47
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4
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4
93
=
7
4
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44
94
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47
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4
4
95
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44
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4
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7
96
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(
4
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7
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4
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4
97
=
(
4
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4
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4
−
7
98
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47
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4
+
4
99
=
4
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4
!
−
4
+
7
100
=
(
74
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4
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)
⋅
4