1577
1
=
15
−
7
−
7
2
=
75
−
71
3
=
71
−
7
−
5
4
=
75
−
71
5
=
175
7
6
=
71
−
5
⋅
7
7
=
57
−
1
−
7
8
=
57
−
1
7
9
=
57
+
7
+
1
10
=
7
⋅
7
+
51
11
=
5
−
1
7
+
7
12
=
5
!
17
−
7
13
=
71
−
7
+
5
14
=
71
−
57
15
=
15
−
7
+
7
16
=
7
7
+
15
17
=
17
7
−
5
18
=
5
⋅
7
−
17
19
=
17
−
5
+
7
20
=
57
⋅
7
+
1
21
=
(
7
−
(
5
−
1
)
)
⋅
7
22
=
7
⋅
7
+
15
23
=
(
7
−
1
)
⋅
5
−
7
24
=
577
−
1
25
=
175
7
26
=
77
−
51
27
=
5
⋅
7
−
1
−
7
28
=
(
5
−
1
7
)
⋅
7
29
=
15
+
7
+
7
30
=
(
7
−
1
7
)
⋅
5
31
=
(
5
−
1
7
)
!
+
7
32
=
(
7
7
+
1
)
5
33
=
(
1
+
7
)
⋅
5
−
7
34
=
7
⋅
7
−
15
35
=
175
⋅
7
36
=
71
−
5
⋅
7
37
=
51
−
7
−
7
38
=
(
5
−
1
)
!
+
7
+
7
39
=
?
40
=
57
−
17
41
=
5
⋅
7
−
1
+
7
42
=
5
!
−
71
−
7
43
=
5
!
−
77
⋅
1
44
=
51
−
7
⋅
7
45
=
7
⋅
7
+
1
−
5
46
=
?
47
=
(
1
+
7
)
⋅
5
+
7
48
=
7
!
15
⋅
7
49
=
57
−
1
−
7
50
=
(
17
−
7
)
⋅
5
51
=
51
−
7
+
7
52
=
5
⋅
7
+
17
53
=
77
−
(
5
−
1
)
!
54
=
1
⋅
7
⋅
7
+
5
55
=
7
⋅
7
+
1
+
5
56
=
(
15
−
7
)
⋅
7
57
=
177
−
5
!
58
=
75
−
17
59
=
71
−
5
−
7
60
=
5
!
7
7
+
1
61
=
(
1
+
7
)
⋅
7
+
5
62
=
77
−
15
63
=
57
−
1
+
7
64
=
7
⋅
7
+
15
65
=
51
+
7
+
7
66
=
77
−
1
+
5
!
67
=
75
−
1
−
7
68
=
75
⋅
1
−
7
69
=
71
+
5
−
7
70
=
(
1
⋅
7
+
7
)
⋅
5
71
=
77
−
1
−
5
72
=
77
⋅
1
−
5
73
=
71
−
5
+
7
74
=
17
+
57
75
=
1
7
⋅
75
76
=
1
7
+
75
77
=
1
5
⋅
77
78
=
17
⋅
5
−
7
79
=
5
−
1
+
77
80
=
?
81
=
75
−
1
+
7
82
=
75
⋅
1
+
7
83
=
71
+
5
+
7
84
=
(
17
−
5
)
⋅
7
85
=
(
5
+
7
)
⋅
7
+
1
86
=
?
87
=
?
88
=
1
+
5
!
+
77
89
=
?
90
=
7
!
57
−
1
91
=
(
1
+
5
+
7
)
⋅
7
92
=
15
+
77
93
=
?
94
=
?
95
=
?
96
=
5
!
−
17
−
7
97
=
?
98
=
15
⋅
7
−
7
99
=
?
100
=
7
⋅
7
+
51