2457
1
=
(
5
−
4
)
27
2
=
54
27
3
=
25
−
4
7
4
=
7
2
−
45
5
=
52
−
47
6
=
52
4
−
7
7
=
74
−
25
8
=
25
+
7
4
9
=
24
+
57
10
=
5
−
(
4
−
2
)
+
7
11
=
5
⋅
7
−
24
12
=
24
−
5
−
7
13
=
72
4
−
5
14
=
25
−
4
−
7
15
=
57
−
42
16
=
25
+
4
+
7
17
=
25
⋅
4
+
7
18
=
45
−
27
19
=
45
−
7
2
20
=
52
4
+
7
21
=
42
7
−
5
22
=
47
−
25
23
=
527
+
4
24
=
572
+
4
25
=
(
4
+
5
)
⋅
2
+
7
26
=
24
−
5
+
7
27
=
54
−
27
28
=
25
−
4
+
7
29
=
4
⋅
5
+
2
+
7
30
=
42
−
5
−
7
31
=
45
−
2
⋅
7
32
=
74
2
−
5
33
=
57
−
24
34
=
54
2
+
7
35
=
245
7
36
=
24
+
5
+
7
37
=
47
−
2
⋅
5
38
=
45
2
−
7
39
=
25
⋅
7
+
4
40
=
42
+
5
−
7
41
=
52
−
4
−
7
42
=
47
−
25
43
=
25
⋅
4
−
7
44
=
42
−
5
+
7
45
=
54
−
2
−
7
46
=
25
!
−
74
47
=
4
⋅
5
+
27
48
=
(
7
−
5
)
⋅
24
49
=
74
−
25
50
=
45
−
2
+
7
51
=
75
−
24
52
=
25
+
47
53
=
4
⋅
7
+
25
54
=
42
+
5
+
7
55
=
52
−
4
+
7
56
=
25
+
4
!
+
7
57
=
2
⋅
5
+
47
58
=
(
7
−
4
)
!
+
52
59
=
5
⋅
7
+
24
60
=
2
5
+
4
⋅
7
61
=
52
+
4
+
7
62
=
72
−
4
⋅
5
63
=
52
+
4
+
7
64
=
74
−
2
⋅
5
65
=
2
⋅
4
+
57
66
=
4
⋅
7
+
52
67
=
74
−
2
−
5
68
=
2
⋅
7
+
54
69
=
74
−
25
70
=
25
⋅
4
⋅
7
71
=
72
+
4
−
5
72
=
25
+
47
73
=
2
4
+
57
74
=
2
7
−
54
75
=
(
7
−
4
)
⋅
25
76
=
(
45
−
7
)
⋅
2
77
=
5
⋅
7
+
42
78
=
(
5
⋅
7
+
4
)
⋅
2
79
=
25
+
74
80
=
4
⋅
7
+
52
81
=
24
+
57
82
=
4
⋅
5
+
72
83
=
45
⋅
2
−
7
84
=
(
7
−
5
)
⋅
42
85
=
(
24
−
7
)
⋅
5
86
=
2
+
7
4
+
5
87
=
4
!
2
+
75
88
=
(
27
−
5
)
⋅
4
89
=
47
⋅
2
−
5
90
=
72
4
⋅
5
91
=
52
4
⋅
7
92
=
4
⋅
5
+
72
93
=
25
⋅
4
−
7
94
=
7
2
+
45
95
=
(
7
−
4
)
!
−
25
96
=
(
5
+
7
)
⋅
2
⋅
4
97
=
45
⋅
2
+
7
98
=
(
2
⋅
5
+
4
)
⋅
7
99
=
24
+
75
100
=
(
7
−
2
)
⋅
4
⋅
5