3677
1
=
36
7
−
7
2
=
63
7
−
7
3
=
76
−
73
4
=
7
−
63
7
5
=
37
−
7
6
6
=
73
−
67
7
=
(
7
−
36
)
⋅
7
8
=
63
−
7
7
9
=
63
7
⋅
7
10
=
63
+
7
7
11
=
73
−
7
6
12
=
7
−
6
3
+
7
13
=
7
⋅
7
−
36
14
=
77
−
63
15
=
67
−
3
+
7
16
=
63
7
+
7
17
=
737
−
6
!
18
=
3
⋅
6
−
7
+
7
19
=
76
7
−
3
20
=
67
−
7
3
21
=
63
7
⋅
7
22
=
36
−
7
−
7
23
=
76
−
7
3
24
=
37
−
6
−
7
25
=
67
−
3
!
⋅
7
26
=
6
!
−
37
−
7
27
=
736
−
7
28
=
63
⋅
7
+
7
29
=
36
−
7
⋅
7
30
=
67
−
37
31
=
73
−
6
⋅
7
32
=
3
⋅
6
+
7
+
7
33
=
?
34
=
76
−
3
!
⋅
7
35
=
36
−
7
7
36
=
36
−
7
+
7
37
=
7
7
+
36
38
=
37
−
6
+
7
39
=
76
−
37
40
=
7
⋅
7
−
3
−
6
41
=
77
−
36
42
=
36
⋅
7
⋅
7
43
=
3
!
!
−
677
44
=
7
!
6
!
+
37
45
=
7
⋅
7
⋅
6
+
3
46
=
67
−
3
⋅
7
47
=
767
−
3
!
!
48
=
(
7
+
7
)
⋅
3
+
6
49
=
63
−
7
−
7
50
=
36
+
7
+
7
51
=
6
3
+
7
⋅
7
52
=
76
−
(
7
−
3
)
!
53
=
773
−
6
!
54
=
67
−
3
!
−
7
55
=
76
−
3
⋅
7
56
=
776
−
3
!
!
57
=
67
−
3
−
7
58
=
7
⋅
7
+
3
+
6
59
=
77
−
3
⋅
6
60
=
73
−
6
−
7
61
=
7
⋅
7
+
3
!
+
6
62
=
63
−
7
7
63
=
63
7
⋅
7
64
=
7
7
+
63
65
=
67
−
7
−
3
66
=
76
−
3
−
7
67
=
(
7
−
3
!
)
⋅
67
68
=
77
−
3
−
6
69
=
7
−
3
+
67
70
=
7
⋅
7
+
63
71
=
77
−
36
72
=
73
+
6
−
7
73
=
(
7
−
6
)
⋅
73
74
=
73
−
6
+
7
75
=
77
−
6
3
76
=
736
+
7
!
77
=
63
+
7
+
7
78
=
7
−
3
+
76
79
=
6
⋅
7
+
37
80
=
76
−
3
+
7
81
=
(
7
+
7
)
⋅
6
−
3
82
=
?
83
=
36
+
77
84
=
(
7
+
7
)
⋅
36
85
=
7
⋅
7
+
36
86
=
73
+
6
+
7
87
=
7
!
63
+
7
88
=
3
⋅
7
+
67
89
=
76
+
3
!
+
7
90
=
7
!
63
−
7
91
=
637
7
92
=
3
!
!
−
76
7
93
=
?
94
=
(
6
+
7
)
⋅
7
+
3
95
=
3
⋅
6
+
77
96
=
?
97
=
3
⋅
7
+
76
98
=
6
3
⋅
7
⋅
7
99
=
?
100
=
(
7
−
3
)
!
+
76