1:(1 + 2) × (3 + 5)
2:(1 + 2 + 5) × 3
3:((1 + 2) + 5) × 3
4:(1 + (2 + 5)) × 3
5:(1 + 2) × (5 + 3)
6:(1 + 5 + 2) × 3
7:((1 + 5) + 2) × 3
8:(1 + (5 + 2)) × 3
9:(2 + 1) × (3 + 5)
10:(2 + 1 + 5) × 3
11:((2 + 1) + 5) × 3
12:(2 + (1 + 5)) × 3
13:(2 + 1) × (5 + 3)
14:(2 + 3) × 5 - 1
15:((2 + 3) × 5) - 1
16:2 × (3 × (5 - 1))
17:2 × 3 ×(5 - 1)
18:(2 × 3) × (5 - 1)
19:(2 + 5 + 1) × 3
20:((2 + 5) + 1) × 3
21:(2 + (5 + 1)) × 3
22:(2 × (5 - 1)) × 3
23:2 × (5 - 1) × 3
24:2 × ((5 - 1) × 3)
25:3 × (1 + 2 + 5)
26:3 × ((1 + 2) + 5)
27:3 × (1 + (2 + 5))
28:3 × (1 + 5 + 2)
29:3 × ((1 + 5) + 2)
30:3 × (1 + (5 + 2))
31:3 × (2 + 1 + 5)
32:3 × ((2 + 1) + 5)
33:3 × (2 + (1 + 5))
34:(3 + 2) × 5 - 1
35:((3 + 2) × 5) - 1
36:3 × (2 + 5 + 1)
37:3 × ((2 + 5) + 1)
38:3 × (2 + (5 + 1))
39:3 × (2 × (5 - 1))
40:3 × 2 ×(5 - 1)
41:(3 × 2) × (5 - 1)
42:(3 + 5) × (1 + 2)
43:3 × (5 + 1 + 2)
44:3 × ((5 + 1) + 2)
45:3 × (5 + (1 + 2))
46:(3 × (5 - 1)) × 2
47:3 × (5 - 1) × 2
48:3 × ((5 - 1) × 2)
49:(3 + 5) × (2 + 1)
50:3 × (5 + 2 + 1)
51:3 × ((5 + 2) + 1)
52:3 × (5 + (2 + 1))
53:(5 + 1 + 2) × 3
54:((5 + 1) + 2) × 3
55:(5 + (1 + 2)) × 3
56:(5 - 1) × 2 × 3
57:((5 - 1) × 2) × 3
58:(5 - 1) × (2 × 3)
59:(5 - 1) × 3 × 2
60:((5 - 1) × 3) × 2
61:(5 - 1) × (3 × 2)
62:(5 + 2 + 1) × 3
63:((5 + 2) + 1) × 3
64:(5 + (2 + 1)) × 3
65:(5 × (2 + 3)) - 1
66:5 × (2 + 3) - 1
67:(5 + 3) × (1 + 2)
68:(5 + 3) × (2 + 1)
69:(5 × (3 + 2)) - 1
70:5 × (3 + 2) - 1