1579
1
=
9
−
(
15
−
7
)
2
=
19
−
5
7
3
=
57
19
4
=
91
−
75
5
=
15
−
7
−
9
6
=
(
57
19
)
!
7
=
19
−
5
−
7
8
=
79
−
15
9
=
17
−
5
−
9
10
=
5
!
19
−
7
11
=
15
−
7
+
9
12
=
71
−
59
13
=
15
+
7
−
9
14
=
1
7
⋅
5
+
9
15
=
15
9
−
7
16
=
91
−
75
17
=
15
−
7
+
9
18
=
91
7
+
5
19
=
15
+
7
−
9
20
=
57
9
+
1
21
=
17
−
5
+
9
22
=
71
−
5
9
23
=
5
!
−
97
⋅
1
24
=
95
−
71
25
=
15
+
7
+
9
26
=
71
−
5
⋅
9
27
=
(
7
−
(
5
−
1
)
)
⋅
9
28
=
79
−
51
29
=
(
5
−
1
)
⋅
9
−
7
30
=
(
9
−
7
)
⋅
15
31
=
15
+
7
+
9
32
=
5
⋅
9
+
17
33
=
17
⋅
9
−
5
!
34
=
91
−
57
35
=
51
−
7
−
9
36
=
7
⋅
9
+
15
37
=
(
5
−
1
)
⋅
7
+
9
38
=
57
−
19
39
=
(
7
−
1
)
⋅
5
+
9
40
=
(
17
−
9
)
⋅
5
41
=
(
9
−
5
)
!
+
17
42
=
59
−
17
43
=
5
⋅
7
−
1
+
9
44
=
1
⋅
5
⋅
7
+
9
45
=
1
7
⋅
5
⋅
9
46
=
97
−
51
47
=
57
−
1
−
9
48
=
7
⋅
9
−
15
49
=
51
+
7
−
9
50
=
(
1
7
+
9
)
⋅
5
51
=
59
−
1
−
7
52
=
59
⋅
1
−
7
53
=
51
−
7
+
9
54
=
5
⋅
7
+
19
55
=
51
+
7
−
9
56
=
75
−
19
57
=
1
9
⋅
57
58
=
1
9
+
57
59
=
179
−
5
!
60
=
(
19
−
7
)
⋅
5
61
=
51
+
7
+
9
62
=
5
⋅
9
+
17
63
=
71
−
5
−
9
64
=
79
−
15
65
=
57
−
1
+
9
66
=
57
⋅
1
+
9
67
=
51
+
7
+
9
68
=
(
9
−
5
)
⋅
17
69
=
71
−
5
+
9
70
=
(
17
−
9
)
⋅
5
71
=
75
−
1
−
9
72
=
(
15
−
7
)
⋅
9
73
=
79
−
1
−
5
74
=
75
−
1
9
75
=
71
−
5
+
9
76
=
17
+
59
77
=
197
−
5
!
78
=
95
−
17
79
=
1
5
⋅
79
80
=
1
5
+
79
81
=
5
−
1
+
79
82
=
97
−
15
83
=
75
−
1
+
9
84
=
75
⋅
1
+
9
85
=
71
+
5
+
9
86
=
5
⋅
9
+
71
87
=
95
−
1
−
7
88
=
19
⋅
5
−
7
89
=
91
+
5
−
7
90
=
1
+
5
!
+
79
91
=
97
−
1
−
5
92
=
97
⋅
1
−
5
93
=
91
−
5
+
7
94
=
15
+
79
95
=
1
7
⋅
95
96
=
15
⋅
7
−
9
97
=
1
5
⋅
97
98
=
(
19
−
5
)
⋅
7
99
=
7
!
+
9
51
100
=
(
17
+
9
)
⋅
5