20+5
25
19-5
14
20+10
30
20-10
10
19+8
27
16+3
19
18-2
16
36+50
56-30
26
27-5
22
32+8
40
22-6
28+30
58
38-20
18
45+30
75
44+7
51
31-6
62+40
102
82-40
42
88-20
68
29+4
33
75-8
67
73+20
93
93-50
43
48+9
57
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